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An object of mass 2 kg is moving east at 5 m/sec and collides with an object of 1 kg mass moving west at 4 m/sec. The objects stick together.
a. What is their common velocity after the collision (direction and magnitude)? (Which conservation law is used here?)
b. How much kinetic energy is lost in the collision?
c. Is this collision elastic?
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an object is solid throughout. when the object is completely submerged in ethyl alcohol its apparent weight is 15.8 n.
a a tennis ball is dropped from 1.51 m above the ground. it rebounds to a height of 0.822 m.with what velocity does it
A particle with a charge of ? 3.00?C is placed at the point P described in part A. What is the direction of the force exerted by the particle
The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both particles have kinetic energies of 1.80 MeV. (a) Find the speed of the electron. c (b) Find the speed of the proton. c
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Consider a refridgerator in a standard home, where the temperatures are 22 degrees Celsius in the home and the refridgerator is kept slightly above freezing, what is the total change of entropy for the problem
A point charge with charge is held stationary at the origin. How much work is done by the electrostatic force on the moving point charge
A room is lighted with four 100 W incandescent light bulbs. (The power of 100 W is the rate at which a bulb changes electrical energy to heat and the energy of visible light.) Assuming that 77% of the energy is converted to heat, how much heat does t..
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