Suppose you have to move a heavy crate of weight 875 {\rm n} by sliding it along a horizontal concrete floor. you push the crate to the right with a horizontal force of magnitude 300 {\rm n}, but friction prevents the crate from sliding. now assume that the crate is sliding along the floor with constant velocity. what is the magnitude f_p of the force you need to exert on the crate to make it continue to slide along the floor with constant velocity?
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True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.
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Aspecified volume of space contains an electric field for which the magnitude is given by e=e0cos(ฯt). suppose that e0 = 20 v/m and ฯ = 1.0 ร 107 sโ1. part a what is the maximum displacement current through a 0.80 m2 cross-sectional area of this volume? express your answer with the appropriate units. idisp,max i d i s p , m a x = nothing nothing request answer part b how would this area have to be oriented relative to the electric field to get this maximum displacement current?
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16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing playerโs feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.
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Suppose you have to move a heavy crate of weight 875 {\rm n} by sliding it along a horizontal concre...
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