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1. Find (and illustrate with a sketch ) a pair of forces which is equipollent to the couple in the figure,and has one force equal to 50i N through the point (x, y) = (10, 20) cm.
2. Repeat the preceding problem with condition changed to a force of 180j N through (x, y) = (30, 40) cm.
3. Replace the 250-lb force in Figure P3.64 by an equipollent system consisting of a force at Q and a couple. Then show that both systems have the same moment about point B.
two 2 cm 2 cm metal electrodes are spaced 1.7 mm apart and connected by wires to the terminals of a 9.0 v battery.1.
A 9.0 kg bowling ball races down the lane at 15 m/s before striking a bowling pin (at rest) with a mass of .85 kg. what is the velocity of the bowling ball after the collision
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