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A block weighing 62.5 N rests on a plane inclined at 25.0° to the horizontal. A force F is applied to the object at 40.0° to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the plane are, respectively, 0.359 and 0.156.
(a) What is the minimum value of F that will prevent the block from slipping down the plane?
(b) What is the minimum value of F that will start the block moving up the plane?
(c) What value of F will move the block up the plane with constant velocity?
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1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
A glider of mass 0.155 is moving to the right on a frictionless, horizontal air track with a speed of 0.730. Find the magnitude of the final velocity of the 0.155 glider
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
calculate the ratio of the rates of stimulated emission to spontaneous emission for a hene laser operating at 632.8nm.
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