when hammer test is preferable than concrete cubic test?
Answer:
Rebound Hammer test is a Non-destructive testing method of concrete which provide a convenient and rapid indication of the compressive strength of the concrete. The rebound hammer is also called as Schmidt hammer that consist of a spring controlled mass that slides on a plunger within a tubular housing.
The operation of rebound hammer is shown in the fig.1. When the plunger of rebound hammer is pressed against the surface of concrete, a spring controlled mass with a constant energy is made to hit concrete surface to rebound back. The extent of rebound, which is a measure of surface hardness, is measured on a graduated scale. This measured value is designated as Rebound Number (rebound index). A concrete with low strength and low stiffness will absorb more energy to yield in a lower rebound value.
a building is considered green from an environmental standpoint for all the following reasons except: A. IT WAS PAINTED USING A VOLATILE ORGANIC COMPOUNDS (VOC) -BASED GREEN PAINT. B. IT IS MORE ENERGY EFFICIENT THAN CONVENTIONAL HOMES. C. IT MINIMIZES THE RELEASE OF TOXIC SUBSTANCES D. IT IS CONSTRUCTED WITH MOSTLY RECYCLABLE MATERIALS
All of the following, with the exception of option a, qualify a building as green from an environmental perspective: it was painted with a volatile organic compound (VOC) based - green paint.
What environmental benefits may green buildings provide?Green neighborhoods and structures promote the creation and maintenance of vegetated land and roof surfaces as well as the reduction of waste disposed of in landfills. High-performing green buildings, especially those that have earned the LEED certification, provide a way to decrease the impact of both residents and buildings on the environment.
What are the top 5 green building products?Green construction techniques
Stone. Living in a stone building is low maintenance and environmentally friendly, and any leftover stone from the construction may be used to finish the home with countertops or tile.
Cob, bamboo, cork, adobe brick, straw bales, cordwood, and earth bags are some examples of building materials.
To know more about organic compounds visit:
https://brainly.com/question/5994723
#SPJ1
technician a says that if the pcv valve were defective or clogged, the engine could idle rough. technician b says that the engine may stall. which technician is correct?
Neither technician A nor B. The engine could idle poorly if the pcv valve were broken or clogged, according to mechanic A. The engine may stall, explains mechanic B.
The PCV valve prevents air and fuel from the crankcase from escaping into the atmosphere by rerouting them through the intake manifold to the cylinders. Your car will perform poorly as the PCV valve begins to malfunction. The engine may stall out or there may be a buildup of pressure in the exhaust as a sign of this. The malfunctioning PCV valve may not completely close, allowing oxygen to enter the combustion chamber. The PCV valve is unquestionably one of the most crucial components of your car, and while it is technically possible to drive your car with a damaged valve, it is not advised because it will eventually corrode the engine.
Learn more about pcv valve here
https://brainly.com/question/23860109
#SPJ4
The bottom hole in the dam is blocked by a flat rectangular shield with a width of -6 m. The water depth in the upstream h1 = 23 m, the depth in the downstream h2 = 11.5 m, the height of the bottom hole t = 17.25 m, the angle of inclination a = 40 °. The sewing can rotate around the axis, which is projected to point A. Determine the force T required to raise the shield.
To determine the force required to raise the shield, we can use the principle of static equilibrium.
In this case, the shield is being acted upon by two forces: the weight of the shield, which is a force acting downward, and the force T, which is a force acting upward.
The weight of the shield can be calculated using the formula: W = mg, where W is the weight, m is the mass of the shield, and g is the acceleration due to gravity. The mass of the shield can be calculated using the formula: m = ρV, where ρ is the density of the material the shield is made of and V is the volume of the shield.
The volume of the shield can be calculated using the formula: V = Bh, where B is the width of the shield and h is the height of the shield. In this case, B = -6 m and h = t = 17.25 m, so V = (-6 m)(17.25 m) = -106.5 m^3.
Plugging this value into the formula for mass, we get: m = ρ(-106.5 m^3).
What is principle of static equilibrium?The principle of static equilibrium states that the sum of the forces acting on an object must be equal to zero in order for the object to be in equilibrium.
As a result, the force T required to raise the shield can be calculated using the principle of static equilibrium. We can set up the following equation: T - W = 0, where T is the force acting upward and W is the weight of the shield acting downward.
Substituting in the values for T and W, we get: T - (m*g) = 0.
Solving for T, we get: T = m*g.
Therefore, the force required to raise the shield is equal to the mass of the shield multiplied by the acceleration due to gravity.
learn more about principle of static equilibrium: https://brainly.com/question/2952156
#SPJ1
malizegrades that receives a row array of test scores of arbitrary length and positive values, and produces two outputs
Normalize Grades:
function [norm Scores, average] = normalize Grades(scores)
m=max(scores);
norm Scores=(scores./m)*100;
average=mean(norm Scores);
end
scores = [90, 45,76,21,85,97,91,84,79,67];
[norm Scores, average] = normalize Grades(scores)
Calculate the average of the normalized scores by scaling the provided scores to a linear scale from 0 to 100. Find the highest score among the provided scores, then use that value to normalize each score between 0 and 100. Utilize mean to determine the normalized score average. Analyze the data set. It makes sense to "normalize" scores in order to make them fit under a normal curve if you assume that they should. Additionally, for conformity's sake, very high scores must be reduced downward during normalization. In either case, some information is lost and data are corrupted. Since grades may be given based on how far above or below 0 each final Z-score ends up after normalization, this approach substantially simplifies both determining one's relative standing in the class and assigning grades.
Learn more about Normalize Grades here
https://brainly.com/question/27900432
#SPJ4
an architect has proposed a series of stepped roof beams to provide visual impact for a public building with high pedestrian traffic. geometric details of the transition region, as well as the entire beam loading, are presented in the figures below. the beam has a constant thickness and a yield strength . as the lead structural engineer for this project, you are tasked with approving or disapproving the design.
Men and exhibits must now navigate their way to a new and continuously evolving relationship with one another after traditionally seeking their solace and support in a similar atmosphere.
The connection between the museum and architecture is incredibly complex, and it can only be discussed in a relatively brief essay, with the possibility of misunderstandings resulting from incompleteness and simplicity. Discussion should be limited to common elements and specific issues. Since museum work encompasses such a broad range of goals, strategies, and accomplishments, the common ground could only be correctly described through a very thorough and comprehensive examination. Therefore, we will focus on a few issues that are crucial to the issues that face museums today.
Learn more about specific here-
https://brainly.com/question/19819958
#SPJ4
which is one of the best structures for holding oil? group of answer choices anticline syncline normal fault reverse fault
An "anticlinal" trap is one of the most effective structures for forming a petroleum reservoir. An impermeable layer of rock forms a cap over a layer of porous permeable sedimentary rock in this location. If petroleum is present, it drifts upward and becomes trapped within the anticline fold.
What is a anticlinal trap structure?
An anticline is the structural-trap formed by the rock strata folding into an arch-like shape. The rock layers in an anticlinal trap were originally laid down horizontally before folding into an arch-like shape known as an anticline due to earth movement.
This type of structure can be seen on a seismic section, but because seismic sections are typically 'time sections,' the actual structure can be obscured by velocity changes above the anticline. The structural contours of an anticline form closed loops.
To know more about seismic section, visit: https://brainly.com/question/28900452
#SPJ4
The minimum depth for a 120-volt, 20-ampere, GFCI protected circuit to an outdoor receptacle run under a street is ______.
Select one:
a. 12 inches
b. 18 inches
c. 24 inches
d. 36 inches
Answer:
12 inches
Explanation:
NEC 300.5 Direct buried cable or conduit or other raceways shall meet the following minimum cover requirements: NOTE: Residential branch circuits rated 20 amps or less at 120 volts or less and with GFCI protection at their source are allowed a minimum cover of 12 inches.
part 91, subpart f prescribes operating rules governing the operation of large airplanes, turbojet-powered multiengine civil airplanes, and fractional ownership program aircraft not involving common carriage. the rules of this part do not apply to operations that are required to adhere to regulations under:
Large aircraft, turbojet-powered multiengine civil aircraft, and fractional ownership program aircraft are all subject to the operating regulations outlined in part 91, subpart F. Operations needed to comply with requirements under: are not subject to the rules of this component : Part 121, 125, 129, 135, and 137,
An air-breathing jet engine, the turbojet is frequently found in airplanes. It is made up of a gas turbine and a nozzle for propulsion. The gas turbine has a compressor, a combustion chamber, a turbine, and an air inlet with inlet guiding vanes (that drives the compressor). Fuel combustion in the combustion chamber heats the compressed air from the compressor before allowing it to expand via the turbine. The propelling nozzle expands the turbine exhaust, which is subsequently accelerated to a high speed to provide push. In the late 1930s, two engineers, Hans von Ohain in Germany and Frank Whittle in the United Kingdom, independently developed the idea into workable engines. Turbojets are only helpful in aviation because of their poor efficiency at low vehicle speeds. In rare instances, turbojet engines have been utilized to power vehicles other than airplanes, usually in an effort to break land speed records. When a vehicle is "turbine-powered," it most often means it has a turboshaft engine, a modified gas turbine engine that uses a second turbine to power a revolving output shaft. These are typical in hovercrafts and helos. On Concorde and the longer-range versions of the TU-144, which had to spend a lot of time travelling supersonically, turbojets were used.
Learn more about turbojet here
https://brainly.com/question/807662
#SPJ4
if you need to weld two pieces of aisi 1018 cd steel together, what will be the yield strength of the steel in the vicinity of the weld in units of kpsi?
if you need to weld two pieces of AISI 1018 cd steel together, the yield strength of the steel in the vicinity of the weld will be 64 kpsi.
What is yield strength?Yield strength is a measure of the maximum stress that a material can withstand without deforming. It is a practical approximation of the elastic limit and is defined as the stress at which a material exhibits a specified permanent deformation.
Yield strength is critical in structural engineering. When designing a component, for example, it must support the force incurred during use and must not deform plastically. To put it another way, a material with adequate yield strength should be chosen.
The yield strength is often used to calculate the maximum permissible load in a mechanical part because it represents the upper limit to forces that can be applied without causing permanent deformation. A variety of yield criteria for various materials have been established.
Learn more about yield strength
https://brainly.com/question/13259307
#SPJ4
during the capture stage of the data life cycle, a data analyst may use spreadsheets to aggregate data.
During the capture stage of the data life cycle, a data analyst may use spreadsheets to aggregate data: False.
What is DLC?In Computer technology, DLC is an abbreviation for data life cycle and it can be defined as a strategic methodology that defines the sequence of stages that a given unit of data goes through from inception (collection) to its eventual deletion (destruction) at the end of its useful life.
In Computer technology, there are six (6) steps in a data life cycle and these include the following:
PlanCaptureManageAnalyzeArchiveDestroyDuring the analyze stage of the data life cycle, a spreadsheet application may be used by a data analyst in order to aggregate data.
Read more on data life cycle here: brainly.com/question/28039445
#SPJ1
Complete Question:
During the capture stage of the data life cycle, a data analyst may use spreadsheets to aggregate data. True or False.
when assembling a steel-lattice tower, what two references are needed to determine the location of each individual piece of steel?
To locate each individual piece of steel, we need to know the locations of the two references:
1. Detailed engineering drawings that specify the exact location, size, and shape of each piece of steel.
2. Structural calculations that define the force and stress requirements of each piece of steel.
What is steel?
Steel is a strong and durable metal alloy composed of iron and carbon. It is one of the most widely used metals in the world, with applications spanning from construction and architecture to industrial machinery and vehicles. Steel is also one of the most recycled materials in the world and can be reused in various ways. Steel is often used in construction due to its high strength-to-weight ratio, its ability to withstand strong forces and its resistance to corrosion. It can be formed into a variety of shapes and sizes, allowing for its use in everything from bridges and skyscrapers to cars and ships. Steel is also known for its malleability, allowing for it to be bent and molded into a variety of shapes and sizes. Steel is also ideal for use in heavy machinery and automobiles due to its strength and durability. Steel is also used to make a variety of everyday items such as cutlery, kitchen utensils, and tools. Steel is also widely used in the production of food cans, containers, and other packaging materials.
To learn more about steel
https://brainly.com/question/28782967
#SPJ4
the repetition structures we have discussed this week can be used interchangeably; however, there are a few occasions when one is clearly preferable to another. discuss, in detail as well as illustrate with an example, how to determine which structure to use when there is no clear indication. additionally, how much of the choice should be based on personal preference and how much on conventional practices?
When a program needs to process one or more instructions repeatedly until a condition is met, at which point the loop stops, repetition structures, sometimes known as loops, are utilized.
Numerous programming tasks are monotonous and rarely differ from one another. Counting and accumulating running totals, repeatedly accepting input data, and recalculating output values that only stop upon entry of a designated value are a few examples of such repetition. Another is the continuous checking of user data entries until an acceptable entry, such as a valid password, is made. Depending on the loop termination criterion, these repetition control structures can be used to repeatedly run the statements in the loop body.
Learn more about input here-
https://brainly.com/question/24179864
#SPJ4
you are the network administrator for a small consulting firm. the firm has recently rolled out a new intranet site, and you are responsible for configuring the dns.you are able to connect to the intranet site by using the ip address, but you cannot connect by using the hostname.which of the following do you need to configure to access the site with the hostname?
You need to configure a DNS A record for the intranet site's hostname to map it to the correct IP address.
What is DNS?
DNS, or Domain Name System, is an internet protocol used to translate domain names, such as www.example.com, into IP addresses, such as 192.168.2.1, that computers can understand and use to communicate with each other. DNS acts as a directory service, providing a link between domain names and their associated IP addresses, which are stored and managed in a distributed database system. DNS is essential for the functioning of the internet, allowing users to access websites and services without having to remember their numerical IP addresses. DNS works by querying a distributed network of DNS servers, which maintain a database of IP addresses and their corresponding domain names. When a DNS query is made, the DNS server looks up the requested IP address in its database and returns it to the user. DNS is an important part of the internet infrastructure and is used by many different types of services, such as email, web hosting, and streaming services.
To learn more about DNS
https://brainly.com/question/29602856
#SPJ1
What are the three different methods of testing?
Answer: Unit, integration, and system testing.
please solve using c++ and the Backtracking Recursion method
must use the starter code(link) down below
Given a positive integer n, write a function that finds all ways of writing n as a sum of nonzero
natural numbers. For example, given n = 3, you’d list off these options (how these 4 terms ordering
does not matter):
3 : 1 + 2; 2 + 1; 1 + 1 + 1
In particular, your task is to finish the following function in the starter code
void printSumsRec(int n, vector &soFar) {
// TO DO... Your codes below
}
Backtracking is an algorithmic strategy for solving problems recursively by trying to create a solution progressively, one component at a time, and discarding those solutions that fail to fulfil the constraints of the issue at any point in time.
Recursion is used by backtracking to address its issues. To achieve this, it looks into every scenario that might arise from an issue until the best and most practical answer is discovered. When a function calls itself repeatedly to break an issue into smaller sub-problems, it engages in recursion and eventually reaches the base case. Backtracking is a generic algorithmic strategy that takes into account looking through each and every combination in order to address a computational issue. By calling a duplicate of itself and resolving the original problem's smaller subproblems, a recursive function solves a specific problem. Every time we go back, we remove the options that aren't going to lead to the solution and move on to the options that could.
To learn more about Backtracking click the link below:
brainly.com/question/30035219
#SPJ4
current attempt in progress a cylindrical radiation shield is placed around a hot cylinder in cold surroundings as shown below. the statement that is correct about the heat rate from the cylinder to the surroundings is: if the shield is a blackbody, then the heat rate is the same regardless of the shield diameter. if the shield is a blackbody, then the heat rate is the same as if there were no shield. if the emissivity of the inside of the shield is increased, then the heat rate will increase. etextbook and media save for laterattempts: 0 of 2 usedsubmit answer
High reflectivity and low emissivity should be characteristics of the radiator shields. The best material for radiation protection is lead metal.
The interaction of particles with matter through collisions and atom capture can be characterized as radiation shielding. In steel, a neutron with an energy of 1 Mev travels 4 cm on average between two impacts. Elements with a high atomic number and high density, like lead, provide the strongest protection against ionizing radiation, such as gamma rays. Very energetic beta particles can enter the body through the skin and travel up to half an inch. With less than an inch of material, such as plastic, they can be protected. The outer layer of clothing can function as an effective shield in the event of beta particles with lesser energy.
Learn more about radiator here-
https://brainly.com/question/13354345
#SPJ4
scan millions of websites to identify individual webpages that contain a specific word or phrase and then attempt to rank the results from most useful to least useful
Search Engines scan millions of websites to identify individual web pages that contain a specific word or phrase and then attempt to rank the results from most useful to least useful.
For your content to show up in search results, search engines must first be able to see it.
In order to operate, search engines must do three essential tasks:
Crawling: Search the Internet for content while reading the code and content of each URL you come across.
Indexing: Archive and arrange the information gathered through the crawling operation. After being indexed, a page has a chance of responding to pertinent searches.
Ranking: Provide the material that best responds to a searcher's query; therefore, results are ranked from most to least pertinent.
To learn more about Websites click here:
brainly.com/question/15601340
#SPJ4
Is there a way to know whether the model I downloaded is made using a pirated copy of Solidworks/ Autodesk Etc?
Answer:
NO
Explanation:
No, there is no way to know if the model you downloaded was made using a pirated copy of Solidworks or Autodesk. It is possible to download free models from legitimate sources such as 3D Warehouse, but it is also possible to download models from sites that are known to host pirated models. The only way to be sure that you are downloading a legitimate model is to purchase it from an authorized source.
two mod-10 synchronous counters are cascaded together. if the input clock frequency is 100 khz, what is the output frequency of the second counter?
The Large counter applications requiring several stages of cascaded counters include digital time clocks, frequency dividers, and synchronization circuits.
Explain about counter?In the beginning, a Counter is a digital sequential logic device that, in response to an input pulse, will cycle through a predetermined state (for instance, counting up and down). Every computer and electronic system makes use of them.This is a basic explanation, but it's important since, as we all know, the culture of computers and electronics is expanding in today's society. The only language that computers can understand is binary, and counters operate using binary codes. Decide whether time is lagging or ahead is the counter's primary function. We can distinguish between an LED flashing and continuing to light it by setting the counter in any electronics circuit to a desired frequency.Since the digital world is used to create many types of counters, we never even consider it without one.To learn more about counter refer to:
https://brainly.com/question/26000993
#SPJ4
Identify the true statement for the given 3-bit shift-right and load register if Dis 011, shr_in is 1, shr is 1. Id is o, and Q is 010. Consider arising clock edge. shr_in D shr ld 3-bit shift-right/load register O I. The present value is shifted: therefore, Q becomes 101 O II. The present value is shifted; therefore, Q becomes 111 O III. The present value of D is loaded into Q: thus, Q becomes 011 O IV. The present value of Q is maintained; therefore, Q remains 010
A 0 is added on the other end and the least-significant bit is lost when shifting right using a logical right shift. A single logical right shift divides a positive number by 2, discarding any remainders, for positive values.
The right shift (>>) operator returns the signed integer represented by the outcome of executing a sign-extending shift to the right by the number of bits provided in the second operand, modulo 32, of the binary representation of the first operand (evaluated as a two's complement bit string). The result will be 14 / 4 = 3 if I move the number 14 by two positions to the right. Since it's an integer, i.e. 14/4 = 3.5, the fractional component will not be taken into account. Generally speaking, the result of shifting a number n times to the right will equal number / (2n). The shift-bit expression's pattern is moved to the right by the amount supplied by additive-expression when using the right-shift operator.
To learn more about single logical click the link below:
brainly.com/question/28713173
#SPJ4
A furnace is located next to a dense array of cryogenic fluid piping. The ice-covered piping approximates a plane surface an average temperature of T, = 0°C and an emissivity of E, = 0.6. The furnace wall has a temperature of T;= 200°C and an emissiv- ity of &r=0.9. To protect the refrigeration equipment and piping from excessive heat loading, reflective aluminum radiation shielding with an emissivity of Es = 0.1 is placed between the piping and the furnace wall, as shown in the schematic. Assume all surfaces are diffuse-gray. Dense piping array, T, = 0°C, Furnace wall T = 200°C, E = 0.9 P & = 0.6 000000000000
Installation criterion TIN < 30°C -Radiation shields, N Es = 0.1 If the temperature of the shield closest to the piping Ts, y must be less than 30°C, how many radiation shields, N, must be installed between the piping and the furnace wall?
Systems utilized in a variety of industrial applications that need for extremely low temperatures, often about -300°F (150°C) or below, are referred to as cryogenic pipes.
Austenitic stainless steel is used to build the stainless SEMIFLEX liquid nitrogen pipe, which is available in sealed and dynamic vacuum and offers the lowest cool down and steady state heat loss for improved thermal performance. Direct impingement with a cryogen, such as liquid nitrogen or carbon dioxide (CO2), allows cryogenic systems to quickly remove heat from the items being processed. CO2 is sprayed directly onto the product and is a consumable refrigerant. A stainless steel inner pipe and an outside stainless steel pipe make up vacuum jacketed pipe. The cryogenic liquid is transported through the inner pipe. It is covered with many layers of super insulation that are constructed by alternating between layers of a non-conductive spacer and a heat barrier.
To learn more about cryogenic pipes click the link below:
brainly.com/question/28384436
#SPJ4
can someone write an essay for me for
Scenario 1: Building a Website or Scenario 2: Printing Band Posters. its for digital photography
The essay could go as follows:
Creating a website for digital photography can be a challenging yet rewarding experience. It requires attention to detail, an understanding of HTML coding, and a good eye for design. Having a basic knowledge of HTML and CSS is essential to building a website that looks great and functions well. Additionally, you'll need to think about hosting, domain names, and any other web-related tasks. With the right tools, you can create a website that showcases your work and lets you share your talent with the world.
The definition of an essay is ambiguous and overlaps with that of a letter, a paper, an article, a pamphlet, and a short fiction. Generally speaking, an essay is a piece of writing that presents the author's own argument.
An essay's body, which includes your in-depth analysis and supporting arguments, introduction, which introduces your topic and thesis statement, and conclusion, which summarizes your main points.
Learn more about Essays:
https://brainly.com/question/20426054
#SPJ1
Assume array1 and array2 are the names of two arrays. To assign the contents of array2 to array1, you would use the following statement:array1 = array2;Group of answer choices
The statement "to assign the contents of array2 to array1, you would use the statement array1 = array2" is definitely false.
How do you establish a parallel relationship between two arrays?If you want to establish a parallel relationship between two or more arrays, it can be done by utilizing the same subscript value for each array specifically.
If a two-dimensional array is to be passed to a function, the parameter declaration in the function must include the number of columns; the number of rows is irrelevant since what is passed is, as before, a pointer to an array of rows, where each row is an array of 5 integers. So, the statement array1 = array2 would not be used in assigning the contents of array2 to array1.
Therefore, the statement "to assign the contents of array2 to array1, you would use the statement array1 = array2" is definitely false.
To learn more about Two-dimensional arrays, refer to the link:
https://brainly.com/question/26104158
#SPJ1
Problem 1 (20 points) The beam
ABC
is subjected to a point load at the middle of segment
AB
and a uniformly distributed load at the segment
BC
, as shown in the figure. a) Find the equation of the elastic curve for the segment
AB
. b) Find the maximum absolute value of the deflection between the supports
A
and
B
c) Find the deflection at the middle of the segment
AB
d) Find the deflection at point C. Set
w 0 =3 N/m,L=2 m,EI=25000Nm^2
. Use the method of superposition for all parts. Hint: for
x>L/2
in segment
AB
, the solution can be obtained from the table by replacing
x
by
L−x
.
To solve this problem, use the superposition method, the total deflection at any point is the sum of the deflections due to the individual loads acting at that point.
a. we need to find the elastic curve equation for segment AB. This can be done by solving for beam deflection due to a point load in the middle of segment AB.
The beam deflection under a point load at distance x from the left support is given by
δ(x) = (w0x^2)/(24EI)
where w0 is the point load, E is the modulus of elasticity of the beam, and I is the moment of inertia of the beam.
Inserting the given value will result in:
δ(x) = (3x^2)/(2425000) = x^2/2000
This is the elastic curve equation for segment AB, as there is a point load in the middle of the segment. For part (b), we need to find the maximum absolute value of deflection between supports A and B. The deflection due to a point load is symmetrical about the midpoint of the segment, so the maximum absolute deflection occurs at the midpoint. Substituting x=L/2=1 into the equation for the elastic curve gives:
δ(x) = (1^2)/2000 = 0.0005m
This is the maximum absolute deflection between supports A and B.
In part (c) we need to find the deflection in the middle of segment AB. Substituting x=L/2=1 into the equation for the elastic curve gives:
δ(x) = (1^2)/2000 = 0.0005m
This is the deflection in the middle of segment AB. In part (d) we need to find the deflection at point C. To do this, solve for the beam deflection due to the evenly distributed load on segment BC and add it to the deflection due to the point load at the middle of segment AB.
b. The deflection of a beam under a uniformly distributed load w per unit length is given by
δ(x) = (wx^3)/(48EI)
Inserting the given value will result in:
δ(x) = (3x^3)/(4825000) = x^3/3200
This is the equation for the elastic curve of segment BC as the load is evenly distributed.
c. To find the deflection at point C, we need to substitute x=L=2 into the elastic curve equation. This will tell you:
δ(x) = (2^3)/3200 = 0.00125m
d. To find the total deflection at point C, the deflection due to the point load at the center of section AB must be added to the deflection due to the evenly distributed load in section BC. Substituting x=L/2=1 into the equation for elastic curve due to point load, we get:
δ(x) = (1^2)/2000 = 0.0005m
Learn more about this on brainly.com/question/1288793
#SPJ4
to solve this challenge, generate the md5, sha1, sha256, sha512 hashes of this file, take the first character of each hash and enter the flag as fs{xxxx}.
Injection 300: SQL injection with raw MD5 hashes, One challenge at yesterday’s CTF was a seemingly-impossible SQL injection worth 300 points.
The point of the challenge was to submit a password to a PHP script that would be hashed with MD5 before being used in a query. At first glance, the challenge looked impossible. Here’s the code that was running on the game server:
<?php
require "inc/mysql.inc.php";
?>
<html>
<head><title>Oh, Those Admins!</title></head>
<body><center><h1>Oh, hi!</h1>
<?php
if (isset($_GET['password'])) {
$r = mysql_query("SELECT login FROM admins WHERE password = '" . md5($_GET['password'], true) . "'");
if (mysql_num_rows($r) < 1)
echo "Oh, you shall not pass with that password, Stranger!";
else {
$row = mysql_fetch_assoc($r);
$login = $row['login'];
echo "Oh dear, hello <b>$login</b>!<br/><br/>Oh, and here's the list of all Admins!<table border=1><tr><td>Oh, login!</td><td>Oh, password!</td></tr>";
$r = mysql_query("SELECT * FROM admins");
while ($row = mysql_fetch_assoc($r))
echo "<tr><td>{$row['login']}</td><td>{$row['password']}</td></tr>";
echo "</table>";
}
} else {
?>
<form>Oh, give me your password, Admin!<br/><br/><input type='text' name='password' /><input type='submit' value='»' /></form>
<?php
}
?>
<br/><br/><small>Oh, © 2010 vos!</small></center></body>
</html>
The only injection point was the first mysql_query(). Without the complication of MD5, the vulnerable line of code would have looked like this:
Learn more about Injection here:
https://brainly.com/question/29689637
#SPJ4
engineers may issue subjective and partial statements if such statements are in writing and consistent with the best interests of their employers, clients, or the public..
A. True
B. False
The statement for engineers may issue subjective and partial statements if such statements are in writing and consistent with the best interest of their employers, clients, or the public is false.
Engineers is a profession that focus to solve technical problem or develop solution for the problem with applied science and mathematics theories and/or principles.
Science and mathematics theories and/or principles is based on the actual facts or objective. So, engineers must put objectivity in their work.
Engineers also objective and issue the full statement in order to give solution to their clients or public problem. If the statement is subjective or partial in any form including writing is wrong because it can't solve clients or public problem.
Learn more about engineers here:
brainly.com/question/7447774
#SPJ4
classical conditioning is the study of behaviors that are____ , whereas operant conditioning studies behaviors that are____
Operant conditioning examines proactive behaviour, whereas classical conditioning examines reactive behaviour.
That is what type of an operant is it?A rat clicking its lever with response to food, an infant screaming in relation to maternal care, or small talk in response to the social engagement are all examples of operant responses.
What is the operant concept?Operant conditioning is based on the fundamental idea that a sensory antecedent somehow triggers an action, which in turn triggers a result. This kind of training makes use of primary, supplementary, and generalised reinforcers—both positive and negative. Food, shelter, and/or water are the 3 main reinforcers.
To know more about Operant visit :
https://brainly.com/question/13144439
#SPJ1
a breakwater along an oceanfront is to be constructed of concrete, and the formwork for retaining the concrete while it is poured is shown. for every 6 ft of width (into the plane of the figure), the formwork has a horizontal support bc and a support df. the stakes at points a, e, and f may be modeled as pins, and the weights of all members except the concrete may be neglected.
NOTE: This is a muiti-part question. Once an answer is submitted, you will be unable to return to this part.
If the concrete is modeled as a fluid with
180lb/ft3 specific weight, determine the force supported by members BC and DF
The force supported by the member
BC is ...........lb. (Round the final answer to four decimal places.) The force supported by the member DF is ..........lb.
An extensive presentation covering the overall concept of formwork, the numerous types, the most recent developments, and a comparison of traditional and modern formwork.
It also covers the analysis of formwork failure factors and safety precautions to be implemented to avoid failure. Structures under dead loads experience consistent weight over time. The self-weight of structural components including walls, plaster, ceilings, floors, beams, columns, and roofs is one of them. Dead loads also comprise the weight of any fixtures that are affixed to the building system permanently. Members are initially scaled based on architectural drawings and other pertinent documents before being analyzed and designed, and their weights are calculated using the data included in the majority of codes.
Learn more about system here-
https://brainly.com/question/27162243
#SPJ4
The dresser has a weight of 80 lb and is pushed along thefloor. If the coefficient of static friction at Aand B is μs = 0.3 and thecoefficient of kinetic friction is μk =0.2, determine the smallest horizontal force P needed tocause motion. If this force is increased slightly, determinethe acceleration of the dresser. Also, what are the normalreactions at A and B when it begins to move?
The normal reactions at A and B when the dresser begins to move will be:
Normal Reaction at A = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
Normal Reaction at B = μk * mg = 0.2 * (80 lb) * 32.2 ft/s² = 64.4 lb
What is reaction?
Reaction is an action taken in response to a particular stimulus. It is the way in which people interact with the world around them. Reactions can be physical, mental, or emotional in nature. It is the way in which individuals respond to situations, people, and events. Reactions can range from positive to negative, and can even be neutral. Reactions are affected by a person's past experiences, beliefs, values, and emotional state. It is also influenced by external factors such as the environment, other people, and media. Reactions are an important part of social interaction and communication, as they provide feedback and help build relationships. They also provide insight into a person's personality, character, and values. Reactions are the building blocks of relationships, and it's important to be aware of how one's reactions affect others.
The smallest horizontal force P needed to cause motion is:
P = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
When the force is increased slightly, the acceleration of the dresser will be:
a = (P - μk * mg) / m = (96.6 - 0.2 * (80 lb) * 32.2 ft/s²) / (80 lb) = 7.7 ft/s²
The normal reactions at A and B when the dresser begins to move will be:
Normal Reaction at A = μs * mg = 0.3 * (80 lb) * 32.2 ft/s² = 96.6 lb
Normal Reaction at B = μk * mg = 0.2 * (80 lb) * 32.2 ft/s² = 64.4 lb
To learn more about reaction
https://brainly.com/question/19260256
#SPJ1