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a ball moving at 5m/s collides head on elastically with a ball at rest. If the moving ball has a mass twice as much as the ball initially at rest, what are the velocities or the two balls after the collision?
How much time is necessary for the torso to come to rest
How numerous forces act on the brick
Using their ship’s engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are at rest, 450 m apart. Explain how much time does it take for the ship and the asteroid to meet?
The loaded cab of an elevator has a mass of 2.8 x 10^3 kg and moves 214 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
A 26.0 kg satellite is in a circular orbit with a radius of 1.60×105 m around the planet Glob. Calculate the speed of the satellite. in m/s
suppose that the engineer is at x = 0 when, at t = 0, he first spots the locomotive. Sketch x(t) curves for the locomotive and high-speed train for the cases in which a collision is just avoided and is not quite avoided.
Two point charges q and 4q are at x=0 and x=L, respectively, and free to move. A third charge is placed so that the entire three-charge system is in static equilibrium. What is the magnitude of the third charge? What is the x-coordinate of the thi..
A baseball is hit at Fenway Park in Boston at a point 0.626 m above home plate with an initial velocity of 31.00 m/s directed 50.0° above the horizontal. find the vertical distance by which the ball clears the wall
An alpha particle (a He nucleus, containing two protons and two neutrons, What is the diameter of the path followed by this alpha particle
A diver beneath the surface of water in a lake looks up at 27 degrees from the vertical to see a life ring floating on the surface. How far is the base of the smokestack from the life ring
A hydrogen atom is in the 2s state. Determine the principal quantum number and the energy of the state
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
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