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Consider a game of billiards. The cue ball has an initial speed v0 before it strikes the eight ball which was previously at rest. After the collision, the cue ball moves o at an angle of 30 dergees to the right of its initial path and the eight ball moves o at an angle of 60 degrees to the left of the cue's ball's initial path. Find the nal speeds of both the cue ball and the eight ball, assuming that the collision was perfectly elastic and that the masses of the two balls are the same. Neglect friction and any rotation of the balls.
Illustrate what is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
The cockroach finds a bread crumb on the rim and, of course, stops. Illustrate what is the angular speed of the lazy Susan after the cockroach stops?
In each cycle of its operation, a refrigerator removes 10 J of heat from the inside of the refrigerator and releases 38 J of heat into the room. How much work per cycle is needed to operate this refrigerator.
Illustrate what is the time it takes for the bullet to hit the ground, how far down range does the bullet travel, and what is the resultant velocity (in m/s) and final angle?
What is the maximum rate of rotation. A moving electron passes near the nucleus of a gold atom, which contains 79 protons and 118 neutrons. At a particular moment electron is a distance of 7.5 x10 ^9 m from the gold nucleus.
Find the von Mises stress (in MPa) at the location of the strain gages.
The skater farthest out has a mass of 58.0 kg and is 7.80 m from the pivot. He is skating at a speed of 6.40 m/s. Find out the magnitude of the centripetal force that acts on him.
The friction force in the sled is 1000N and the angle between the two ropes is 20 degrees. Explain how hard must each player pull to drag the coach at a steady 2.0 m/s?
The specific heat of ethanol is 2.44 J/g·°C. How various kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C.How far last car travel before momentarily coming to rest.
Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
Two 24 cm focal-length converging lenses are placed 16.50 cm apart. An object is placed 39.0 cm in front of one. Where would the final image formed by the second lens be located.
You observe that the hammer hangs at rest with respect to the bus when the angle between the rope and the ceiling of the bus is 79. Illustrate what is the acceleration of the bus?
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