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A cue ball (mass = 0.160 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.70 N · s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second ball of equal mass that is initially at rest. Find the velocity of the second ball just after it is struck.
A 200g block on a frictionless surface is pushed against a spring with spring constant 500N/m, compressing the spring by 2.0cm. at what speed does it shoot away from the spring
2 protons, each with charge q=1.602E-19 C, are fixed in space. They form a spherical nucleus with diameter 1E-15 m. Find electric potential energy for the electron in orbit
A pendulum clock is accurate on earth, where the period of its pendulum is 1.00 s. During a 2 h interval, what would be the elapsed time shown on the clock
Astronomers measure the width of the spectral lines of a star to be much wider than would be measured in a laboratory. Give two stellar characteristics that could produce this widening
A bug sits on the rim of a 30 cm-diameter disk. The disk accelerates uniformly from rest to an angular speed of 75.0 rev/min in 4.30 s?, What is the tangential acceleration of the bug
a dog sledding team is comprised of a 82.6 kg musher the person driving the sled a 22.4 kg sled and four dogs. assume
A solid block of wood is a cube whose volume is 1x10^-3m^3. When dropped into a swimming pool, How much does the block of wood weigh
What is the charge on each electrode.
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach base camp
The position of a rocket sled on a straight track is given as x = a t3 + b t2 + c, What is the sled's average speed between t = 3.48 s and t = 6.92 s
Consider a cylinder of Volume V=10cm^3 that contains an ideal gas. Compute the total number of gas molecules inside the cylinder
A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.602 and the coefficient of kinetic friction is 0.327. How much force is needed to begin moving the book
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