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A 0.460-kg toy is undergoing SHM on the end of a horizontal spring with force constant k = 500 N/m. When the object is 0.012 m from its equilibrium position, it is observed to have a speed of 0.500 m/s.
(a) What is the total energy of the object at any point of its motion?
J
(b) What is the amplitude of the motion?
m
(c) What is the maximum speed attained by the object during its motion?
m/s
Peter and Carter are dropping rocks into a stream from a bridge at a height of 28 m above the water below, As Meg emerges from the water below she is struck by both rocks. Calculate the speed of each rock at impact with Meg
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The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
A river narrows at a rapids from a width of 15m to a width of only 6.0m. The depth of the river before the rapids is 2.7m ; the depth in the rapids is 0.70m. Find the speed of water flowing in the rapids
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