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Ball 1, with a mass of 140 gram and traveling at 15 m/s, collides head on with ball 2, which has a mass of 330 gram and is initially at rest.
1) Find the final velocities of each ball if the collision is perfectly elastic?
2) Find the final velocities of each ball if the collision is perfectly inelastic?
A jet flying faster than the speed of sound creates a shock cone of high pressure air. What will be the angle of the shock cone
A 0.66-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from0.14 to 0.25 m ( relative to its unstrained length), the speed of the sphere decreases from 6.15 to 4.55 m/s. What is the spring constant of the spring?
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When released, the textbook slides on a horizontal tabletop with coefficient of kinetic friction k = 0.30. Use the work-energy theorem to find out how far the textbook moves from its initial position before coming to rest.
Suppose you walk into a sauna that has an ambient temperature of 50.0 C. Calculate the rate of heat transfer to you by radiation given your skin temperature is 37.0 C
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question planet a has a radius of 750 km and an acceleration due to gravity of .47 ms2. what are the escape speed from
A block of mass 2.5 kilogram starting from rest falls a vertical distance of 75 centimeter before striking a vertical coiled spring. Find the Distance that the Spring is compressed
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A particle's initial velocity was (3.2, 4.5) meter per second, its final velocity is (2.6, 5.8) meter per second, and its constant acceleration was (-2.4, 5.2) m/s2. Find what was its displacement
A ball has a diameter of 3.89 cm and average density of 0.0844 g/cm3. What force is required to hold it completely submerged under water
The density of copper is 8.92g/cm3, and its atomic mass is 64.0. Assuming each copper atom contributes one mobile electron to the metal, find the number density of free charges in the wire
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