Answer:
c
Explanation:
because it depends on the base whether pnp or npn
How many volts of alternating current passes through the electrolytic capacitor
Answer:
The capacitor in its conventional form is constructed from two electrically conducting metallic plates facing each other and separated by an electrically insulating medium.
Storing parts outside doesn’t cause any environmental risks as long as the items are covered.
True
False
It should be noted that the storage of equipments outside is bad as it's a hazard even if they're covered. Therefore, it's false.
What is an hazard?A workplace hazard simply means the situation that can lead to injury or have adverse effects on people.
The storage of equipments outside is bad even if they're covered. It's essential for one to assess the risks that can be encountered through storage and ensure that it's reduced.
Therefore, there should be a storage space for equipment and not outside.
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Answer:
False
Explanation:
They still are in risk
A liquid mixture containing 0.45 mol fraction of heptane and 0.55 mole fraction ethyl benzene is fed as saturated vapor to a distillation column at a flow rate of 200 kgmol/h for product separation. The distillation operates at 1 atm (absolute). The recovery of heptane (to the distillate product) is 95% and the required heptane purity in the distillate is 0.98 (mole fraction). Calculate the following:
a. The distillate and bottom flowrates
b. The minimum reflux ratio
c. The minimum number of stages
d. The number of stages at a reflux ratio of 1.5Rmin
What are some of the advantages of working in preconstruction?
An enclosed parts washer does not wash, rinse, and dry.
True
False
Answer:
false cause a parts washer doesn't wash , rinse or dry
You observe a car parked on the side of the road. If the car started to move, Which conclusion could you make?
Answer:
there is someone inside the car
Liquid water flows isothermally at 20°C through a one-inlet, one-exit duct operating at steady state. The duct’s inlet and exit diameters are 0.02 m and 0.1 m, respectively. At the inlet, the velocity is 10 m/s and pressure is 1 bar. At the exit, determine the mass flow rate, in kg/s, and velocity, in m/s.
The continuity equation allows finding the results for the speed and flow of the outlet pipe are:
Q = 3.14 kg / s v₂ = 0.4 m / s
Fluid mechanics studies the movement and fluid dynamics, it is described by two fundamental relationships:
The Bernoulli equation that an expression of the energy conservation[tex]P_1 + \frac{1}{2} \rho v_1^2 + \rho g y_1 = P_2 + \frac{1}{2} \rho v_2^2 + \rho g y_2[/tex]
Where P is the pressure, v the velocity, y the height, the subscripts are two selected points of interest in the pipe.
The continuity equation which is an expression that our principle of mass conservation for fluids
[tex]A_1v_1 = A_2 v_2[/tex]
Where A₁ and A₂ is the area of the inlet and outlet pipes and v₁ and v₂ are the velocities of the fluid at the inlet and outlet
They indicate the inlet and outlet diameters of the pipe are d₁ = 0.02 m and d₂ = 0.1 m, the inlet velocity v₁ = 10 m / s, with the continuity equation let's find the outlet velocity
[tex]v_2 = ( \frac{A_1}{A_2} )^2 \ v_1[/tex]
the cross section of the tavern is
A = [tex]\pi r^2 = \pi \ d^2/4[/tex]
Where r is the radius and d is the diameter
Let's substitutes
[tex]v_2 = (\frac{d_1}{d_2} )^2 \ v_1[/tex]
[tex]v_2 = (\frac{0.02}{0.1} )^2 \ 10[/tex]
v₂ = 0.4 m / s
The flow (Q) is defined as the amount of liquid that passes through the section of the pipe per unit of time, we can see that this is the same conservation of mass, therefore
Q = A v
Q = [tex]\pi \frac{d_2^2}{4} \ v_2[/tex]π d2 ^ 2 v2
Q = [tex]\pi \ \frac{0.1^2}{4} \ 0.4[/tex]
Q = 3.14 10⁻³ m ^ 3 / s
As the transported liquid is water
1 liter water = 1 kg
Consequently
1 m³ = 1000 liter = 1000 kg of water
Let's reduce the flow
Q = 3.14 10⁻³ m³/s ( [tex]\frac{10^3 kg}{1 m^3}[/tex] )
Q = 3.14 kg / s
In conclusion using the continuity equation we can find the results for the speed and flow of the outlet pipe are:
v₂ = 0.4 m / s Q = 3.14 kg / s
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What is the latest space exploration rocket?
Answer:
NASA's Space Launch System will be the most powerful rocket we've ever built. When completed, SLS will enable astronauts to begin their journey to explore destinations far into the solar system.
what are the advantages and disadvantages of dynamic programming in operations research?
Answer:
ADVANTAGES
1.for the various problems in areas such as inventory chemical engineering design and control theory dynamic programming is the only technique used to solve the problem
2. it is well suited for multi-stage or multi-point or sequential decision process
3. it is suitable for linear or nonlinear problems discrete or continuous variables and deterministic problems
DISADVANTAGE
1. no general formation of dynamic program is available; every problem has to be solving in its own way
2. dividing problem in sub problem and storing intermediate results consumes memory.
Explanation:
wab u
rocks AND minerals aré natrally ocurring substaces
Answer:
yes they are naturally occurring substances.
Answer:
Explanation:where’s the question love?
What do you think will happen to the demand curve if there is a sudden surplus for a certain commodity?
Answer:
the curve will flatten due to the supply and demand theory.
Anew student in your class has something different about his appearance. No one wants to sit beside him. You step forward and decide to sit next to him and make him feel comfortable and welcoming. This is an example of:
Answer:
approaching a lady or a man
Chọn dữ liệu phù hợp và biểu diễn chúng dưới dạng biểu đồ, từ đó cho biết 3 yếu tố
mà người dùng xem xét nhiều nhất khi mua một chiếc tablet.
Answer:
Please explain it in English so that i can help you or you need someone who can speak Vietnam help you
two technicians are describing how an air-conditioning system gets rid of the heat. Technician A says that heat always flows from the hotter to the colder object. Technician B says that as refrigerant evaporates, it absorbs heat as it changes from a liquid to a gas. which technician is correct?
Based on the information provided by these technicians, both of them are correct.
How does heat flow?According to heating, ventilation, and air conditioning (HVAC), heat in an air-conditioning system generally flows from the hotter object to the colder object.
As the refrigerant evaporates in a small radiator-type unit (evaporator), it absorbs heat as it changes phase from liquid to gas. Also, as the heat is being absorbed by the refrigerant, the small radiator-type unit (evaporator) becomes cold.
In conclusion, we can logically deduce that both of them are correct.
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Which of the following describes the purpose of project management?
Answer:
The purpose of project management is to help you foresee the risks and challenges that could derail the completion of a project. It applies proven methodologies and uses current software tools so you can plan, control, and monitor people, processes, and other components needed to make your project a success.
Hello,
please the answers should be for A-LEVEL students.
thank you very much
Answer:
see attached for a diagram and loads
Explanation:
The mass of the man represents a downward force of ...
F = ma
F = (85 kg)(9.8 m/s²) = 833 N
at a point 1.5 meters from one support. In the attached diagram, the man is standing left of center, so is 1.5 m from the left support, and 4.9 m from the right support.
The mass of the beam represents a downward force of ...
F = (15 kg)(9.8 m/s²) = 147 N
This is effectively modeled by a force acting on the center of the beam, 3.2 m from each support. The distance between supports is 6.8 -2(0.2) = 6.4 m.
The net torque on the beam is zero. This means we can sum the torques at either support and set them to zero. If we let s1 represent the upward force supplied by the left pillar, and s2 the upward force supplied by the right pillar, the two torque equations are ...
torque = force × distance
CW torque about the left pillar: 833×1.5 +147×3.2 -s2×6.4 = 0
s2 = 1719.9/6.4 ≈ 268.7 . . . newtons
CCW torque about the right pillar: -s1×6.4 +833×4.9 +147×3.2 = 0
s1 = 4552.1/6.4 ≈ 711.3 . . . newtons
The magnitudes of the loads carried by the supports are 268.7 N and 711.3 N.
__
Check
For static equilibrium, the sum of upward forces must match the sum of downward forces:
268.7 +711.3 = 980 . . . . newtons (total of upward forces)
883 +147 = 980 . . . . . . . newtons (total of downward forces)
What does the line strung between the batter boards represent?
Batter boards (or battre boards, Sometimes mispronounced as "battle boads") are temporary frames, set beyond the corners of a planned foundation at precise elevations. These batter boards are then used to hold layout lines (construction twine) to indicate the limits (edges and corners) of the foundation.
the distribution of ground shaking around the fault
Ground shaking is a term used to describe the vibration of the ground during an earthquake. Ground shaking is caused by body waves and surface waves. As a generalization, the severity of ground shaking increases as magnitude increases and decreases as distance from the causative fault increases.
Look at the following situation and write a short email requesting help.
You bought 2 cartridges for your printer online, but when they arrive you notice that the best before date on them has already passed. Write and ask for replacements to be sent
To write a formal letter it is necessary to take the following aspects into account, to whom it is addressed, the date, the reason, and thanks.
An ink cartridge is a replaceable assembly of a printer that contains the ink and print head itself that projects the ink onto the paper during printing.
A suitable email to request the change of cartridges for ones that have not expired would be:
Monday 1st November, 2021
ABC Printer Company
Printer Cartridge Department.
I write this email to request you resend two cartridges for my printer because in recent days I made the purchase of them through the website and the cartridges that arrived at my house were expired according to the date indicated on their label.
I send the proof of purchase and my information so that the cartridges can be sent to me again.
William Simpson
6th Avenue, Park Tower Building
Apartment 615
Thanks.
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OSHA requires safe work practices when working around brake shoes and clutches that contain asbestos.
True
False
Answer:
true
Explanation:
what is the fastest spacecraft ever created
Answer:
NASA solar probe becomes fastest object ever built as it 'touches the sun'
☞Fastest human-made object: 244,255 mph (393,044 km/h).
☞Closest spacecraft to the sun: 11.6 million miles (18.6 million kilometers).
☞The Parker Solar Probe is a NASA space probe launched in 2018 with the mission of making observations of the outer corona of the Sun. It will approach to within 9.86 solar radii from the center of the Sun, and by 2025 will travel, at closest approach, as fast as 690,000 km/h, or 0.064% the speed of light.
☞ It was launched on 12 August 2018 .
☞ it's price was 1.5 billion USD ( in 2018 )
☞ it was manufactured in
' Applied Physics Laboratory ' .
component of earthing and reasons why each material is being used
Answer:
The components of earthing are Earth electrode, Main earthing terminals/bars, Earthing conductors, Protective conductors Equipontential binding conductors and Electrically independent electrodes.
10.16.1: LAB: Interstate highway numbers (Python)
Primary U.S. interstate highways are numbered 1-99. Odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. Auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. Thus, I-405 services I-5, and I-290 services I-90.
Given a highway number, indicate whether it is a primary or auxiliary highway. If auxiliary, indicate what primary highway it serves. Also, indicate if the (primary) highway runs north/south or east/west.
Ex: If the input is:
90
the output is:
I-90 is primary, going east/west.
Ex: If the input is:
290
the output is:
I-290 is auxiliary, serving I-90, going east/west.
Ex: If the input is:
0
the output is:
0 is not a valid interstate highway number.
----------------------------------------------------------------------------
The code I have is:
highway_number = int(input())
if 1 <= highway_number <= 999:
if highway_number <= 99:
if highway_number % 2 == 0:
print("I-" + str(highway_number) + " is primary, going east/west.")
else:
print("I-" + str(highway_number) + " is primary, going north/south.")
else:
primary_number = highway_number
highway_number %= 100
if highway_number % 2 == 0:
print("I-" + str(primary_number) + " is auxiliary, serving I-" + str(highway_number) + ", going east/west.")
else:
print("I-" + str(primary_number) + " is auxiliary, serving I-" + str(highway_number) + ", going north/south.")
else:
print(str(highway_number) + " is not a valid interstate highway number.")
--------------------------------------------------------------------------------------------------------------
How do I get 200 to say it is not a valid interstate highway number?
The program is an illustration of conditional statements.
The program in Python where comments are used to explain each line is as follows:
highwayNumber = int(input("Highway number: "))
#This checks if the highwayNumber is not between 1 and 999 (inclusive)
if (highwayNumber <1 or highwayNumber > 999):
#If yes, the highwayNumber is invalid
print(str(highwayNumber)+" is not a valid interstate highwayNumber number.")
#If otherwise
else:
#This checks if highwayNumber is less than 100
if (highwayNumber< 100):
if (highwayNumber%2 == 0):
#Even highwayNumber are primary going east/west
print("I-"+str(highwayNumber)+" is primary, going east/west.")
else:
#Odd highwayNumber are primary going north/south
print("I-"+str(highwayNumber)+" is primary, going north/south.")
#Otherwise
else:
if ((highwayNumber%100) % 2 == 0):
#Even highwayNumber are auxiliary going east/west
print("I-"+str(highwayNumber)+" is auxiliary, going east/west.");
else:
#Even highwayNumber are auxiliary going north/south
print("I-"+str(highwayNumber)+" is auxiliary, going north/south.");
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Which of the following is a characteristic of a basic hydraulic
system?
Answer:
hydraulic fusis,filters,wear resistance,compressibility,viscosity.
Explanation:
viscosity is a measure of an hydraulic fluid resistance to flow
why exam is important in our life
Answer:
I am also finding this ans but it is difficult
Explanation:
well to live in this world exam r important
we have to come with every difficulty
so that we can learn
Explanation:
Exam gives the result that what you learnt
And for Education exam is main
without Education everything is very difficult
On-site oil storage containers must be marked “Used Oil.”
True
False
Answer:true
Explanation:g
On-site oil storage containers must be marked “Used Oil.” is the true statement.
What kind of container can be store oil in?Steel containers have long been used to hold oils and other liquids, but regular steel is known to rust, corrode, and degrade more quickly than stronger materials. A stainless steel container offers more protection, and storing oil in one won't result in rust problems.
Use of glass or metal containers is their greatest option. If a person plan to store something in the refrigerator, use containers that can handle the cold. No matter what kind of oil you have, you must keep it away from light. Always keep them out of the way, covered, and away from direct light. The oil should be kept in a cool, dark location, like your pantry. Keep it away from the light and the stove. The oil will oxidize more quickly in the presence of heat and light.
Thus, it is a true statement.
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Nêu các kí hiệu và kích thước của các
khổ giấy chính ?
Answer:
sorry I can't understand your language
Explanation:
a burglar's car had a start with an acceleration of 2m/s . A police vigilant party cane after 5seconds and continued to chase the burglar's car with a uniform velocity of 20m/s . find the time taken in which the police van will overtake the burglar's car
Explanation:
Let the distance covered after which the police party catches the burglar is ‘s ’.
Let ‘t ’ be the time and given that the police came after 5sec, therefore the time taken by police to catch the burglar is ‘t−5 ’.
The burglar’s car will start moving from rest, therefore initial velocity is, u=0
Given that the acceleration is 2m/s
Applying the equation of motion,
S1=ut+12at2
⇒S1=0×t+12×2×t2
⇒S1=0×t+12×2×t2
⇒S1=t2 -----------(i)
Since the police’s car is moving at uniform velocity, therefore acceleration will be =0, Also u=20m/s.
Again applying the equation of motion to the police car,
⇒S2=ut+12at2
On substituting the corresponding values, we get
⇒S2=20(t−5)+12×0×t2
⇒S2=20t−100 -------(ii)
Since the time at which the police car catches the burglar’s car is to be calculated, therefore
S1=S2
⇒t2=2t−100
⇒t2−20t+100=0
we can rewrite the above equation as,
⇒(t−10)2=0
⇒(t−10)(t−10)=0
On solving,
⇒t=10
The time taken by the police is t−5=10−5=5sec.
hope this helps you.
It is illegal to improperly dispose of antifreeze.
True
False
Answer: True
Explanation:
It is illegal to dispose of antifreeze in the trash, ground, or storm drains.
Answer:
true
Explanation:
how to do this goalookr goalookr
Well, I am not able to understand your question...