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A force of 768 Newton stretches a certain spring a distance of 0.214 meter.
(a) Find the potential energy of the spring when it is stretched 0.184 meter?
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(b) Find its potential energy when it is compressed 5.50 centimeter?
A box starts out at the top of a frictionless ramp, then slides down. The ramp has a height h = 3 meters and a slope of 5 degrees with respect to the ground. What does this make the velocity of the box at the bottom
What is the electric potential energy of the system.
The force on a particle is directed along an x axis and given by F = 0.97(x/4.6 - 0.52) where x is in meters and F is in Newtons. Find out the work done by the force in moving the particle from x = 0 to x = 8.9 m.
When the starter motor on a car is engaged, there is a 330A current in the wires between the battery and the motor. Suppose the wires are made of copper and have a total length of 1.5m .
After 6.00 kg of water at 70.0 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. When heat is added to or removed from a solid or liquid of mass m and specific heat capacity c, the change ..
A slide projector needs to create a 98 cm high image of a 2.0 cm tall slide. The screen is 300 from the slide. How far should you place the lens from the slide
A person pushes on a stationary 125 N} box with 69N at 30degrees below the horizontal, as shown in the figure. The coefficient of static friction between the box and the horizontal floor is 1.20. What is the normal force on the box?
The hare waits for a while after the tortoise passes and then runs toward the finish line again at 7.45 m/s. Both the hare and the tortoise cross the finish line at the exact same instant.
assume four objects each of mass m are placed at the corners of a square os side length, How much work is needed to separate the planets so that they are infinitely away from each other
A transformer consists of two coils of wire wound on a common toroidal iron core. What is the induced emf in the second coil
A cyclotron with a magnetic field B=0.9 T and a maximum orbital radius of 50 centimeter is used to accelerate deuterons (2Hnuclei). Find the frequency of the AC accelerating voltage
A plane of a 5.0 cm x 8.0 cm rectangular loop of wire is parallel to a 0.19 T magnetic field. The loop carries a current of 6.2 A. What is the magnetic moment of the loop
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