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You throw a clay ball at a hockey puck on ice. The smashed clay ball and the hockey puck stick together and move slowly.
a. Is momentum conserved in the collision? Explain.
b. Is kinetic energy conserved? Explain.
Auniform plank of length 5.0 m and weight 225 N rests horizontallyon two supports, with 1.1 m of the plank hanging over the rightsupport (see the drawing). To what distance x can a personwho weighs 484 N walk on the over hanging part of the plank ..
A 68-kg skater moving initially at 2.4 m/s on rough horizontal surface comes to rest uniformly in 3.52 s due to friction. What force does friction exerts on the skater
Two small identical conducting spheres are placed with their centers 0.74 m apart. One is given a charge of 1.2 10-8 C, the other a charge of ?2.2 10-8 C. Find the electrostatic force exerted on one sphere by the other
A shot-putter moves his arm and the 7 kilogram, shot through a distance of 1.0 m. obtain the average force exerted on shot during this time
A volleyball is spiked so that it has an initial velocity of 16.5 m/s directed downward at an angle of 53.1 ° below the horizontal. determine the horizontal component of the ball's velocity
Write a term paper on a topic given below: The history of the development of quantum mechanics
A freezer is used to freeze 2.0 L of water completely into ice. The water andthe freezer remain at a constant temperature of T =0°C. Determine the change in the entropy of the freezer
A test tube contains 2.56 10-4 m3 of liquid carbon tetrachloride at a temperature of 75.5° C. Find the volume of carbon tetrachloride in the test tube at -11.7° C
halleys comet has a period of approximately 76 years and it moves in an elliptical orbit in which its distance from the
citizens band cb radio uses radio waves with frequencies near 27 mhz. what are the wavelengths of these waves and how
An object of mass 1.2 kg hangs from the end of a spring. Imagine that the object is lifted upward and held at rest at the position where the spring is not stretched. What is the amplitude of the oscillation
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.5 cm-3, and their speed is 657 km/s. Find the current density of these protons
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