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Suppose you’re coding a 3D pool game, and you’re focused on the cue ball hitting another ball at rest. The cue ball has a mass of 0.45kg and an initial velocity of [-10 50 -15]. It completely stops when it h it’s the other ball with a mass of 0.10kg. What is the second ball’s final velocity as a result of the collision?
A fan blade is revolving at 20 cycles/s when someone turns off the fan. How long will it take for the fan blade to come to rest
A sample of isotope of 131 Iodine (half-life of 8.04 days) has activity of 5.8 mCi at the time of shipment. How much time has elapsed between the two measurements
What force does a 55 kg passenger exert on the seat when she is at the top of the Ferris wheel.
An early method of measuring the speed of light makes use of a rotating slotted wheel. A beam of light passes through one of the slots at the outside edge of the wheel travels to a distance mirror, and returns to the wheel just in time to pass thr..
Consider a swinging pendulum with length l= 10 cm, a mass of 1 gm swinging at the end of it with an amplitude, Calculate the total energy ( potential plus kinetic) in ergs of the swinging pendulum
What is the speed of projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.
Where can a third charge be placed. To what common temperature must the two pieces be heated in order that the cylinder just fit over the piston.
A 72.0-kg log falls from a height of 27.0 m into a lake. If the log, the lake, and the air are all at 305 K, find the change in entropy of the air during this process
Calculate the work done, the amount of heat absorbed, and the change in internal energy during: melting of 1 gram of ice to water at a temperature of O degrees Celsius under a constant pressure of 1 atmosphere
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor. What is the work done by friction on the crate
Three masses are placed at different points along a meter stick of negligible mass: 0.09 kg at 0.98 m, 0.04 kg at 0.55 m, Where's the center of mass of the system
When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration.
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