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Two blocks, each of mass m = 2.1 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 5.4 N, directed to the right, as shown in the figure below. The blocks move together to the right at constant velocity.
(a) Find the frictional force exerted on the lower block by the table.
(b) Find the coefficient of kinetic friction between the surface of the block and the table.
(c) Find the frictional force acting on the upper block.
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A metal ball bearing 1.0 cm above the bead feels a 0.035 N downward electric force, What is the charge on the ball bearing
Elucidate the spacing between peaks
Some sliding rocks approach the base of a hill with a speed of 18.0m/s . The hill rises at 40.0? above the horizontal and has coefficients of kinetic and static friction of 0.390 and 0.650, Find the acceleration of the rocks
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