Answers: 3
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius ķ
=0.381meters and mass ķ=3.1ķķ. initially ķ"is on the ground and ķ#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of ķ#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Physics, 23.06.2019 10:00
A12-g wad of sticky clay is hurled horizontally at a 100-g wooden block initially at rest on a horizontal surface. the clay sticks to the block. after impact, the block slides 7.5 m before coming to rest. if the coefficient of friction between the block and the surface is 0.65, what was the speed of the clay immediately before the impact?
Answers: 1
Physics, 23.06.2019 23:50
Achild standing on a bridge throws a rock straight down. the rock leaves the child's hand at time t = 0 s. if we take upward as the positive direction, which of the graphs shown below best represents the velocity of the stone as a function of time?
Answers: 3
Which shuttle completed the final us space shuttle mission?...
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