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A 7.50kg shell at rest explodes into two fragments, one with amass of 3.00kg and the other with a mass of 4.50kg.
If the heavier fragment gains 150J of kinetic energy from theexplosion, how much kinetic energy does the lighter one gain?
A photon of wavelength 0.91000 nm strikesa free electron that is initially at rest. The photon is scattered straight backward. What is the speed of the recoil electron after the collision
question1a loudspeaker of mass 22.0 kg is suspended a distance of h 2.20 m below ceiling by two cables that make equal
A woman on a bridge 97.0 m highsees a raft floating at a constant speed on the river below. Shedrops a stone from rest in an attempt to hit the raft. Find the speed of the raft
a dart is thrown horizontally at a dartboard and strikes the dart board 0.08 meters below the bulls eye. the dart board
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
A 13 g bullet traveling 226 m/s penetratesa 2.0 kg block of wood and emerges going 164 m/s. If the block is stationary on a frictionlesssurface when hit, how fast does it move after the bulletemerges?
Consider a spacecraft in an elliptical orbit around the earth. At the low point, or perigee, of its orbit, it is 300km above the earth's surface; What is the period of the spacecraft's orbit
Two identical capacitors store different amounts of energy: capacitor A stores 2.2 x 10-3 J, Find the voltage across the plates of capacitor A
A 11-g piece of Styrofoam carries a net charge of -0.85 ?C and floats above the center of a large, What is the charge per unit area on the plastic sheet
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
wile e. coyote carnivorus hungribilus is chasing the roadrunner speedibus cantcatchmi yet again. while running down the
a 15mw energy laser has a beam exit diameter of 2cm and beam divergence of 0.0002radians.anbspnbspcalculate the power
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