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A completely inelastic collision occurs among two balls of wet putty that move directly toward each other along a vertical axis. Just before the collision, one ball, of mass 3.0 kg, is moving upward at 20 m/s and the other ball, of mass 2.0 kg, is moving downward at 12 m/s. How high do the combined two balls of putty rise above the collision point? (Neglect air drag.)
A girl delivering newspapers covers her route by traveling 4.00 blocks west, 6.00 blocks north, and then 5.00 blocks east. (a) What is her resultant displacement?
A pendulum consists of a 3.1 kg stone swinging on a 3.8 m string of negligible mass. The stone has a speed of 7.9 m/s when it passesits lowest point. (a) What is the speed when the string is at 57° to the vertical?
a spherical capacitor is comprised of a solid inner conduction sphere of radius a with positive charge q and an
A 50 kg diver steps off a 10 m high platform and strikes the water below in 1.43 seconds. determine the average frictional force that stopped his motion while in the water
A projectile of mass m is fired from the ground with an initial speed vi at an angle of q above the horizontal. At the highest point of its arc, it explodes into three pieces, A, B and C, all of equal mass. Immediately after the explosion, pieces A a..
Two circular disks spaced 0.50 mm apart form a parallel-plate capacitor. What are the diameters of the disks
A football quarterback throws a pass at an angle of 36°. He releases the pass 3.50 m behind the lineof scrimmage. His receiver left the line of scrimmage 2 s earlier, going straight down-field at a constantspeed of 7.50 m/s.
A wooden block of mass 29.0 kilogram sits on a horizontal table. Find what is the coefficient of static friction between block and table
A hollow sphere of negligible mass and radius R is completely filled with a liquid so that it's density is p. What is the density of the enlarged sphere
An excellent laboratory vacuum has a pressure of 5.00 multiply.gif 10-18 atm, ow many gas molecules are there per cubic centimeter in such a vacuum at 290 K
a metal rod is forced to move with constant velocity along two parallel metal rails, if the rails are separated by 35.3 cm and the speed of the rod is 45.7 cm/s, what is the magnitude of the emf generated in volts
It takes 3.87 Joule of work to stretch a Hooke's-law spring 8.5 centimeter from its unstressed length. Compute how much extra work is required to stretch it
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