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A 1.2 kg block is released from rest at point A and follows the curved guide as indicated. At point A this block is located 2.2 m higher than at point B. There is no friction between the block and the guide except between points B and C. The distance between points B and C is 2.5 m. At point C the block is moving with speed of 3.5 m/s.
a) Find kinetic energy of the block at point B.
b) Find kinetic energy of the block at point C.
c) Find friction force acting on the block between points B and C.
d) The 1.2 kg block then strikes a stationary 2.4 kg block at point C and sticks to it. At what speed do the blocks move off to the right?
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
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An L-R-C series circuit L = 0.115H , R = 241? , and C = 7.30?F carries an rms current of 0.450A with a frequency of 401Hz. What is the phase angle in radians
A long wire is known to have a radius greater than 5.2 mm and to carry a current that is uniformly distributed over its cross section, What is the radius (in mm) of the wire
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