Answer:
b. magnitude is the correct option
Answer:
B.) magnitude
Explanation:
The magnitude of an earthquake is a measure of the amount of energy released by the earthquake. The magnitude is typically expressed on the Richter scale, which is a logarithmic scale that quantifies the size of an earthquake based on the amplitude of the seismic waves it generates. The magnitude of an earthquake is a measure of the earthquake's size and power, and is not the same as its intensity, which is a measure of the earthquake's effects on a specific location. A seismogram is a record of the ground motion during an earthquake, as recorded by a seismograph. Force is not directly related to an earthquake.
When moving a 100 kg couch, you apply a 55 N force and experience a frictional force or 10 N, what is the couch's
acceleration?
25N
Answer:
0.45 m/s²
Explanation:
Fnet = 55N - 10N = 45N
Force of friction is in opposite direction of the applied force.
a = Fnet/m = 45N/100 kg = 0.45 m/s²
what happens to a moving object here on earth that keeps it's kinetic energy less than potential energy?
Answer:
If a moving object on Earth has less kinetic energy than potential energy, it means that its speed is not enough to overcome the force of gravity.As a result, the object will slow down and eventually come to a stop.If it is moving uphill, it will roll back down, and if it is moving horizontally, it will eventually come to a halt due to friction with the ground.In either case, the object will eventually reach a state where its kinetic energy is equal to its potential energy, at which point it will stop moving.the fastest rollercoaster in the world is the formula rossa in abu dhabi, united arab emirates. how many miles per hour does it travel?
The fastest rollercoaster in the world is the formula rossa in abu dhabi, united arab emirates, speed of this is 240 km/h (149.1 mph)
The rate at which an object's distance traveled changes is measured by its speed. In terms of measurement, speed is a scalar, meaning it has magnitude but no direction. Speed is the rate at which an object moves over a given distance. a thing that travels at a high rate of speed and covers a lot of distance quickly. A slow-moving object, on the other hand, travels a comparatively short distance in the same amount of time when moving at a low speed. An object with zero speed is completely immobile.
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the power plant comprises one-piston engine of 230 hp at sea level. calculate the maximum velocity of the airplane at sea lev
The maximum velocity of aircraft will be between 200- 300 ft.
What is velocity ?
Velocity is the rate at which something is travelling in a specific direction. An object's velocity can either be constant or variable. The object's speed, direction of travel, or both can be altered.
What is sea level ?
On Earth, sea level serves as the reference point for determining elevation and depth. Since the ocean is one continuous body of water, its surface tries to seek uniformity everywhere it is.
b= 35.8 ft
S= 174 ft2
W= 2950lb
fuel capacity= 65
cp₁₀= 0.025
e=0.8
p=0.8
powerplant= one piston engine of 230hp of sea-level
V= ?
Let us assume v= 200ft/s
G= W/ 1/2 lr v²s = 2950/ 1/2 *0.0002377 * (200)² *177
= 0.357
Aspect ratio b³/3 = (35.8)²/ 17 a
=7.37
=0.025+ (0.357)²/π (0.07) (7.37)²
=0.0319
L/D = 0.357/ 0.0319 = 11.2
T= W/ L/D = 2950/ 11.2 = 263lb
PR=TRV = 263lb* 200
= 52600lb/fts²
This engine has power of 230 hp
230*550lb
= 126500 lb/fts²
so it can flow more at velocity of sea level
Hence, the maximum velocity of aircraft will be between 200- 300 ft.
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A body which moves from rest with a uniform acceleration travels 18m during the third second. What will be its velocity at the end of the eighth second?
if sunlight were green instead of white, the most comfortable color to wear on a hot day would be
If the sunlight were some how green rather of white we have to wear green clothes.
Also on a veritably hot day green multicolored clothes will be most comfortable, while on a veritably cold day white clothes will absorb all the green color and will make you feel warmer.
The color of the sun is white. The sun emits all colors of the rainbow more or less unevenly and in drugs, we call this combination" white". That's why we can see so numerous different colors in the natural world under the illumination of sun.
In conclusion, darker colors will warm up more snappily and absorb further heat in sun than lighter colors.
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Tom has a mass of 70.8 kg and Sally has a
mass of 48.1 kg. Tom and Sally are standing
31.3 m apart on a massless dance floor. Sally
looks up and she sees Tom. She feels an
attraction.
If the attraction is gravitation, find its magnitude. Assume both can be replaced by point
masses and that the gravitational constant is
6.67259 × 10^−11 N · m^2
/kg^2
Answer in units of N.
Answer:
The Gravitational Attraction of Tom and Sally is 28.4631292 N.
Explanation:
The gravitational force formula is
gravitational force = (gravitationalconstant)(massofobject1)(massofobject2)/(distancebetweenobjects)^2
So if you plug in the values given, you get 28.4631292.
you are flying on v306 from lake charles to daisetta. where is the vor changeover point? a. 50 nm west of lch. b. 30 nm west of lch. c. 50 nm east of das.
30 NM east of DAS the vor changeover point.
Aviation includes activities related to mechanical flight and the aircraft industry. Airplanes include fixed and rotary wing types, deformable wings, wingless lifting devices, and lighter-than-air vehicles such as hot air balloons and airships.
Aviation began in the 18th century with the development of the hot air balloon, a device capable of altering the atmosphere through lift. Some of the most important advances in aviation technology came with the controlled gliding of Otto his Lilienthal in 1896.
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A bowling ball rolls without slipping up a ramp that slopes upward at an angle β to the horizontal. Treat the ball as a uniform, solid sphere, ignoring the finger holes.
Part A:
What is the acceleration of the center of mass of the ball?
Express your answer in terms of the variable β and appropriate constants.
Part B:
What minimum coefficient of static friction is needed to prevent slipping?
Express your answer in terms of the variable β and appropriate constants.
Friction is an opposing force that works on a body's surface and tries to stop it from moving. Newton (N) is its unit.
What is the friction force?
Friction is the force created when two surfaces of two things come into contact and slide against one another.
It is described mathematically as the product of the normal reaction and the coefficient of friction.
The equation becomes balanced once the provided force and acceleration in the various components have been resolved. elements moving in the x-direction
To find acceleration on an inclined plane
Ma(sin∅) - F = ma
mg(cos∅) = R
F = μR
To prevent slippage, the frictional force must be less than the maximum static friction force. We'll use constants to represent the ratio of the ramp's opposite and adjacent sides.
At this point, the frictional force equals ma. It was previously discovered that a=gsin
The frictional force is thus mgsin∅. The maximum static friction force, or normal force, is defined as kmgcos∅, where k is the minimal static friction coefficient.
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a circular coil of radius 15 cm is placed in a uniform magnetic field of strength 0.70 t. the direction of the magnetic field is at an angle of 20o with the normal of the coil. what is the magnetic flux through the coil?
The magnetic flux through the coil is 667.38 mWb. Magnetic flux is an important concept in electromagnetism and is used to calculate the force on a conductor in a magnetic field
Magnetic flux is a measure of the strength of a magnetic field passing through a surface. It is defined as the product of the surface area and the component of the magnetic field perpendicular to that surface.
The unit of magnetic flux is the weber (Wb), which is defined as the amount of magnetic flux that produces an electromotive force of one volt in a conductor that is completely enclosing a flux of one weber.
The magnetic flux through the coil is given by the equation:
φ = BAcosθ
where φ is the magnetic flux, B is the strength of the magnetic field, A is the area of the coil, and θ is the angle between the magnetic field and the normal to the surface of the coil.
In this case, the magnetic flux is given by:
φ = (0.70 T) * (π * (15 cm)^2) * cos(20o)
= 667.38 mWb
Note that the magnetic field strength is in tesla (T), the radius of the coil is in centimeters (cm), and the magnetic flux is in milliwebers (mWb).
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what was the power output of the speaker, assuming uniform spherical spreading of the sound and neglecting absorption in the air?
The power output of the speaker is 1922.2W.
What do power input and output mean?The quantity of energy put into a device is referred to as input, and the amount of energy that comes out is known to as output. The type of energy may be altered by a device, but not its quantity. For instance, a light bulb uses electrical energy as its energy input and produces light and heat as its output energy.
Briefing:
P= IA
Where,
I = Intensity
A = Area
P= I1A
P= I1(4πr2)
P= (31.62W/m2)(4π×(2.2m)2)
Therefore,
P= 1922.2W
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a car increases its speed, changing its kinetic energy from 60,000 j to 80,000 j. assuming no friction, how much work is done by the car’s engine to cause this change?
The work done by the car engine to cause the car to increase its speed, hence, changing its kinetic energy from 60,000 j to 80,000 is 20000 J
What is work done?Work done is the product of the force applied and the distance moved by the applied force in the direction of the applied force.
Mathematically;
Work done = force * distance
The unit for measurement of work done is Joules.
The work done by the car engine to cause the car to increase its speed, hence, changing its kinetic energy from 60,000 j to 80,000 is the difference between the initial kinetic energy of the car and the final kinetic energy of the car.
The work done by the car engine = final kinetic energy - initial kinetic energyThe work done by the car engine = 80000 J - 60000 J
The work done by the car engine = 20000 J
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Which of the following statements about electromagnetic waves, sound waves and water waves is/are correct?
1. They exhibit reflection
2. They carry energy 3. They exert pressure 4. They can travel in vacuum
Select the correct answer using the code given below:1, 2, 32 & 41 & 31
All the mentioned statements are true about electromagnetic waves because they exhibit reflection, the carry energy, the exert pressure and they can travel in vacuum.
An Electromagnetic wave is a wave that has the electric field component and magnetic field component which are perpendicular to each other and also to the direction of the propagation of the wave.
An Electromagnetic wave does not need any medium to travel they can travel in vacuum.
For an example, light is also an Electromagnetic wave and it shows reflection so we can say that electromagnetic wave exhibit reflection.
We know that, light carries energy so we can stay that electromagnetic wave carries energy and they also exert pressure because we experience the pressure by the UV rays that fall on the surface of the earth.
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the box is sitting on the floor of an elevator. the elevator is accelerating upward. the magnitude of the normal force on the box is
When an item is thrown vertically upwards, the acceleration because of gravity stays unchanged and acts in downward direction.
Since the axis became selected such that high quality is the upward direction, acceleration because of gravity is negative.N = mg if the elevator is at relaxation or shifting at consistent velocity. N = mg + ma if the elevator has an upward acceleration. N = mg - ma if the elevator has a downward acceleration.
This is an utility of Newton's 2d regulation to the forces felt in an elevator. If you're accelerating upward you experience heavier, and in case you are accelerating downward you experience lighter. If the elevator cable broke, you'll experience weightless considering the fact that each you and the elevator could be accelerating downward on the identical rate.
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a 60 kg skier strats from the rest from top of a 50 m high slope. if work done by friction is -6 kj what is the speed of the skier on reaching the bottom of the slope
If the work done by friction is -6 kJ, the skier's speed when reaching the bottom of the slope is 28 m/s.
The work done by the friction force is a dissipation energy. Hence, according to the law of conservation of energy:
work done by friction = initial energy - final energy
Initial energy = potential energy = mgh
Final energy = kinetic energy = 1/2 . mv²
Where:
m = mass of skier = 60 kg
h = height = 50 m
v = speed
Hence,
mgh - 1/2 . mv² = 6000
60 x 9,8 x 50 - 1/2 x 60 x v² = 6000
1/2 x 60 x v² = 60 x 9,8 x 50 - 60 x 100
v² = 780
v = 28 m/s
Hence, the skier's speed when reaching the bottom of the slope is 28 m/s.
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A 1200kg elevator i upported by a cable in which the maximum afe tenion i 14. 000N
A. What i the greatet upward acceleration of the devetor
B. The greatet downward acceleration
(a)The greatest upward acceleration of the elevator with 1200 kg mass and specified maximum tension is 11.67 m/s².
(b) The greatest downward acceleration is 9.8 m/s².
(a) Given that,
Mass of the elevator = 1200 kg
Tension = 14000 N
Acceleration is the pace at which the speed and direction of a moving object alter over time.
We know the formula to calculate force as, F = m* a
Making a as subject, we have a = F /m
Putting the values in the equation,
a = F /m = 14000/1200 = 11.67 m/s²
Hence, the upward acceleration of the system is 11.67 m/s²
(b) The greatest downward acceleration is nothing but the acceleration due to gravity.
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a 1.5-v alkaline d battery can provide about 43100 j of electric energy. if a curreny of 0.5 a flows through two d batteries while theyre in a circuit of a flashlight, how long will the batteries be able to provide power to the flashlight
The batteries will be able to provide power to the flashlight for 15.96 hours with specified voltage, energy and current.
Given that,
Energy E = 43100 J
Voltage v = 1.5 V
Current i = 0.5 A
Let t be the time for which batteries provide power to the flashlight.
The relation between energy, time, voltage and current is Energy = v* i* t
where, v is voltage
i is current
t is time
By placing the values in the formula above,
43100 = 1.5* 0.5* t
t = 43100/(1.5* 0.5) = 57466.67 s = 957.78 minutes = 15.96 hours
Thus, the time upto which the batteries provide power to the flashlight is 15.96 hours.
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FILL IN THE BLANK. if r is a real zero of even multiplicity of a function f, then the graph of f ____ the x-axis at r.
Answer: touches
Explanation:
identify the stage in star life cycle in which hydrogen is the primary fuel for nuclear fusion?
The stage in star life cycle where hydrogen is the primary fuel for nuclear fusion is called the main sequence star.
The star life cycle comprises of different stages. All stars are formed from nebula, which is a huge cloud of gas. The different stages in a star's life are
1. Protostar - They are massive clumps of cloud and dust and are not hot enough to achieve fusion.
2. Main sequence star - This is where the fusion takes place. Hydrogen undergo nuclear fusion to become helium and emits a great amount of energy. As long as there is hydrogen for nuclear fusion, the star remains as main sequence.
3. Red giants- After the star run out of hydrogen, they becomes much larger than the size when they were Main sequence. These stars will be much cooler. Here fusion takes place between helium and carbon.
Even though all stars starts the same the end will be based on the mass of the star. Smaller stars form a white dwarf. Big stars can become super giants and explode as supernova. Massive stars becomes neutron stars or black holes.
Life cycle of star where Hydrogen fusion is the main source of energy is Main sequence star.
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a car is travelling with a uniform acceleration along a straight road it passes a point a with a velocity of 8 ms-1 and 5 seconds later it passes a point b with velocity 25 ms-1 find the velocity with which the car passes the mid-point of ab.
The speed of the car passing through midpoint AB is 18.5 m/s.
If an object (with an initial u) is moving at a straight-line speed with a constant acceleration a, its distance s from the starting point and final velocity v will change with time t.
You do not know the distances but as C is the mid-point of AB if you let AC be n, then AB = 2n. This use of n as the unknown allows you to form equations.
From A to B
u = 8, v = 25, s = AB = 2n
v² = u² + 2as
25² = 8² + 2a x 2n
625 = 64 + 4an
an = (625 – 64) ÷ 4 = 140.25
You are given information about speeds and distances. Time will not come into the question, so it is reasonable to try and make two equations with v² = u²+2as.
From A to C
u = 8, s = AC = n, v = ?
v² = u² + 2as
v² = 8² + 2an
v² = 82 + 2 (140.25)
v² = 64 + 280.5
v² = 344.5
v = √344.5
v = 18.5 m/s
The speed of the car at AB is 18.5 m/s
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A box with a passenger inside is launched straight up into the air by a giant rubber band. Before launch, the passenger stood on a scale and weighed 750 N.Once the box has left the rubber band but is still moving upward, is the passenger's weight more than 750 N, 750 N, less than 750 N but not zero, or zero?
The passengers weight will be zero according to the box, but their true weight is still 750 N.
If the passenger was standing on a scale in the box, the scale would be at zero. This is because the passenger, box, and scale are all in free fall. The passenger still has mass, though and is still in a gravitational field, therefore it has a true weight of 750 N, which is mass X acceleration due to gravity, mg. Technically something can only have weight if it a normal force exists between the mass and the surface of another object, such as a scale.
Freefall is defined as a situation when a body is moving only under the influence of the earth's gravity. Since external force is acting on the ball, the motion will be accelerated. This free-fall acceleration is also known as acceleration due to gravity.
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if a 15-foot seesaw had a child weighing 100 pounds on the side where the seat was 10 feet away from the fulcrum, and the child on the opposite side weighed 200 pounds and was 5 feet away from the fulcrum, which formula would be correct to figure out if they were in static equilibrium?
The formula used to figure out if the two sides of the seesaw are in static equilibrium is force* perpendicular distance from the fulcrum.
The principle of moments is used to determine the seesaw's balancing point.
According to the principle of moments, the clockwise moment around a point equals the anti-clockwise moment.
The moment on one side of the seesaw = 100 pounds* 10 ft
⇒ 1000 pound-ft
The moment on the other side of the seesaw = 200 pounds* 5
⇒ 1000 pound-ft
Here, moment on one side of the seesaw = moment on the other side of the seesaw = 1000 pound-ft
So, according to the principle of moments, the seesaw is in static equilibrium.
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what is the sequence of the anticodon, from the 3\' to 5\' end, of the trna in the a site?
The sequence of the anticodon, from the 3' to 5' end, of the trna in the a site is UGC.
'What is tRNA?'
A unique type of RNA molecule is called a transfer RNA (tRNA). Matching an mRNA codon to the amino acid it codes for is its responsibility. It functions as a sort of molecular "bridge" between the two, if you will.
An anticodon is a group of three nucleotides found in each tRNA. One or more distinct mRNA codons can bind to the anticodon of a particular tRNA. The amino acid encoded by the codons to which the tRNA binds is carried by the tRNA molecule as well.
A cell contains a wide variety of tRNAs, each of which has a unique anticodon and corresponding amino acid. In actuality, depending on the species, there are often 404040 to 606060 various varieties.
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)how far beyond its natural length (in cm) will a force of 50 n keep the spring stretched? (round your answer one decimal place.)
The spring will stretch beyond its natural length by 1.5 cm when a force of 50 N is applied.
The amount of stretching a spring experiences when a force of 50 N is applied to it is determined by Hooke's Law. According to Hooke's Law, the force applied to the spring and the extension of the spring are proportional. This means that the greater the force applied to the spring, the greater the extension.
Using Hooke's Law, the amount of extension of the spring when a force of 50 N is applied can be calculated using the following formula:
Extension = Force/Spring Constant
Where the spring constant is a measure of how stiff the spring is.
To calculate how far beyond its natural length (in cm) the spring will be stretched when a force of 50 N is applied, we first need to determine the spring constant of the spring in question. This can be done by measuring the natural length of the spring and then measuring how far it stretches with a known force. Once we have determined the spring constant, we can enter it into the formula above and solve for the extension.
For example, if the natural length of the spring is 15 cm and it extends to 18 cm with a force of 50 N, the spring constant would be 33.33 N/cm.
Using this spring constant, the extension of the spring when a force of 50 N is applied would be 1.50 cm
50/33.33 = 1.50.
Therefore, the spring will stretch beyond its natural length by 1.50 or 1.5 cm when a force of 50 N is applied.
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an ultrasound system is set at 0 db and is transmitting at full intensity. what is the output power when the system is transmitting at 50% of full intensity?
the output power when the system is transmitting at 50% of full intensity -3dB .
In telecommunications, transmission is the act of transmitting or relaying analog or digital signals over wired, wireless, or fiber optic media. [1][2]
Transmission techniques are usually associated with physical layer protocol tasks such as modulation, demodulation, line coding, equalization, error control, bit synchronization and multiplexing, but also include higher layer protocol tasks. There are cases. B. Digitization and data compression of analog signals.
The transmission of digital messages or digitized analog signals is called data transmission.
An example of a transmission is the transmission of a signal of limited duration. Blocks or packets of data, phone calls, or emails
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what is the delta u for a system which has the following two steps: step 1: the system absorbs 60 j of heat while 40 j of work are performed on it
The delta Internal energy u for a system which has the following two steps is zero.
E = q + w
where q = heat and w = work completed
Q is positive when the system absorbs heat.
Q is negative when the system emits heat.
When the mechanism is functioning, w is negative.
The system performs better when work is done on it.
Step 1
E1 = 60 KJ + 40 KJ = 100 KJ.
E2 = (30 KJ + 70 KJ = (-100 KJ)
E1+E2=100KJ+(-100)KJ = 0KJ
Internal energy is the total internal energy of a thermodynamic system. It consists of both internal kinetic and potential energy contributions and is the energy needed to create or prepare the system in its internal state at the time. It keeps track of the system's energy gains and losses as a result of adjustments to its internal condition. [1][2] Both the system's total kinetic energy of motion and any external energies from the surrounding force fields are excluded. The cornerstone of the first law of thermodynamics, the law of conservation of energy, is the notion that the internal energy of an isolated system remains constant. Internal energy has a wide range of facets.
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how may kilometers would you have to go above the surface of the earth for our weight to decrease to half of what it was at the surface
We have to go above 2651 kilometers of the earth for our weight to decrease to half of what it was at the surface
Geophysics applies the concepts of physics to the take a look at of the Earth. It deals with things like the motion of the Earth's crust and the temperatures of its interior.
Geology : is the medical take a look at of the earth- the material of which it is made, the methods that act on those materials, the products shaped, and the history of the planet and its existence paperwork due to the fact starting place. Geology now includes the take a look at of other planets as nicely.
We defile the earth via thinking about other people as our enemies, outsiders and foreigners; by dividing our earth into international locations and by developing enmity in opposition to any other institution of people.
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a person is riding on a ferris wheel. when the wheel makes one complete turn, the net work on the person by the gravitational force . (a) is positive (b) is negative (c) is zero (d) depends on how fast the wheel moves (e) depends on the diameter of the wheel
A person is riding on a Ferris wheel. when the wheel makes one complete turn, the net work on the person by the gravitational force is Zero.
When a person rides on a ferris wheel, the gravitational force acting on them is constant. This force is directed downward, towards the center of the Earth. The person's displacement, or movement, is also constant, as they move in a circular path around the center of the ferris wheel. However, the displacement is perpendicular to the direction of the gravitational force.
Since the force and displacement are perpendicular, the work done by the gravitational force is zero. Work is defined as the product of force and displacement, and in this case, the dot product of the force and displacement vectors is zero because they are perpendicular.
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the captain of a plane wishes to proceed due west. the cruising speed of the plane is 246 m/s relative to the air. a weather report indicates that a 35.1-m/s wind is blowing from the south to the north. in what direction, measured with respect to due west, should the pilot head the plane?
The pilot of the plane should move 7.96° due west in order to proceed west direction.
According to the question the relative speed of plane with respect to air is 246 m/s. The speed of the wind is 35.1 m/s and the direction of the wind is from south to north. Now if we consider the velocity of plane with respect to ground as V m/s then in the west direction the components of this velocity will be
V cosθ = 246 m/s .....(1)
V sinθ = 35.1 m/s .....(2)
Dividing equation (2) by equation (1)
tanθ = 35.1/246
tanθ = 0.14
θ = tan⁻1(0.14)
θ = 7.96° which is the required value.
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Determine the force in member DE of the truss, and state if the member is in tension or compression. Take P = 1745 lb .
The tension or compression of F CD = 3375 lb (G), F HI = 5625 lb (G), F CJ = 6750 lb (G)
Latin roots for the verb "to stretch" give us the word "tension." testing a portion of the force, such as a particular type of pull force. Any two physically connected objects may apply forces to one another. Depending on the kinds of things in contact, this contact forces different names. The force tensions are what we refer to when one of the items applying the force is a rope, string, chain, or cable. The force that results from compressing a material or object is called the compression force. Compression forces are the result of shearing forces aligning into one another. From hand tools to compression brakes, the compression force is employed to power everything. An essential engineering aspect is the compressive strength of materials and structures.
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The complete question:
Determine the force in members CD of the truss, and state if the member is in tension or compression. Take P = 1570lb. Determine the force in members HI of the truss, and state if the member is in tension or compression. Take P = 1570lb . Determine the force in members CJ of the truss, and state if the member is in tension or compression. Take P = 1570lb .