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A 0.20 kilogram baseball is dropped and reaches a speed of 1.0 m/s just before it hits the ground. It rebounds with a speed of 0.80 m/s. Find what is the change in the ball momentum?
A fast, measured pitched baseball left the pitcher's hand at aspeed of 40.0 m/s. How much time did it take him to pitch it
q1. consider the gas consisting of a large number of non-interacting particles in which energy of each particle can
In a Young's double-slit experiment, the seventh dark fringe is located 0.029 m to the side of the central bright fringe on a flat screen, which is 1.0 m away from the slits. The separation among the slits is 1.5x10-4 m. What is the wavelength of the..
A mixture of ethyl alcohol (molecular mass = 46.1 u) and water (molecular mass = 18.0 u) contains one mole of molecules. What mass m of water does it contain
Suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 5.00 Hz. What is the frequency of the simple harmonic motion
A space probe accelerated uniformly from 50 m/s at t = 0 to 150 m/s at t = 10 sec. How far did it move between t = 2.0 sec and t = 6.0 sec
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
The titanic was found in 1985 lying on the bottom of the north ocean.The pressure that the titanic felt at that depth was 400 times atmospheric pressure. what was the depth
A series ac circuit contains a 230? resistor, a 18.0mH inductor, a 4.50?F capacitor, What is the power factor of this circuit
A 14000 kg railroad car travels alone on a level frictionless track with a constant speed of 24.0 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed?
A boy throws a stone horizontally from the top of a cliff of height h toward the ocean below. find the speed of the stone immediately before it reaches the ocean
A door made of a uniform piece of wood measures 1 m by 2 m and has a mass of 18 kg. Find the force (mag and direction) that the door exerts on the hinge
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