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A rubber ball with a mass of 0.58 kg is released for rest from a height of 8 meters above the ground. Due to the interaction with the ground, each time it bounces it loses some of its total mechanical energy to non conservative forces and it bounces to 71 percent of its height before it hit the ground. After 4 bounces, how much total energy is lost, in joules?
a rehabilitation patient does exercises to strengthen their upper arm. their upper arm segment is cm long from the
A bullet is fired horizontally with an initial velocity of 250m/s from a tower that is 20 m high. Calculate the time the bullet is in the air
A right triangle has a hypotenuse of length 17 cm and a leg of length 15 cm. What is the length of the other leg
A 46kg box is being pushed a distance of 7 m across the floor by the force vector P whose magnitude is 144N. The force vector P is parallel to the displacement of the box.
A rocket is traveling at speed V along the x axis of frame S. It emits a signal (for example, a pulse of light) that travels with speed c along the y' axis of the rocket's rest frame S'. What is the speed of the signal as measured in S?
The intensity of the sound from a certain source is measured at two points along a line from the source. The points are separated by 12.9 m, Calculate the power output of the source
A 390 nm thick film floats on a puddle of water. When illuminated normally with 700 nm light there is no reflection, but 400 nm light is strongly reflected. What is the film's index of refraction
Most dentist in the United States are make as the majority of nurses are female. These differences show how different cultures define.
Bronco Brown is mowing his lawn. He applies a force F along the handle of the lawnmower as shown. Bronco moves the mower at constant velocity. What is the magnitude of the resistance force acting horizontally on the mower
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 7.63 m/s2. Evaluate what is the orbital period of the satellite
an infinitely long line of charge has a linear charge density of 6.00times10-12 cm . a proton is at distance 14.0 cm
The linear momentum of a 1300 kg carincreased by 6.30×103 kg m/s in13.7 s. What is the magnitude of the constant force that accelerated the car? By how much did the speed of the car increase?
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