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A 0.873-kg block is held up against a ceiling by a pole that makes an angle of 21 degree with respect to the vertical; treat the pole as massless. The coefficient of static friction between the block and the ceiling is 0.45 and the coefficient of dynamic friction is 0.17.
a. Draw a free body diagram of the system.
b. Set up the equation for equilibrium. assume the block is just on the verge of moving across the surface of the ceiling.
c. What minimum force in the pole is necessary to get the block moving?
In a Hall-effect experiment, a current of 2.9 A sent lengthwise through a conductor 0.89 cm wide, 3.1 cm long,, find the drift speed (in m/s) of the charge carriers
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A 2 kg mass passes through the origin (x=0) with initial velocity -3m/s to the left on a horizontal frictionless table, Find the values of x which the mass has zero acceleration
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Illustrate what factor caused fewer purchases to be planned? Suggest business conditions that would cause this factor to both occur and impact the company in this way."
Provide your answer in m/s in scientific notation to three significant digits (i.e. 1.15*10^2)
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