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Responding to an alarm, a 93 kilogram fireman slides down a pole to the ground floor, 3.2 meter below. The fireman starts at rest and lands with a speed of 3.4 m/s.
(a) Obtain the average force exerted on the fireman by the pole.
(b) If the landing speed is twice that in part (a), is the average force exerted on the fireman halved?
(c) Obtain the average force exerted on the fireman when the landing speed is 6.8 m/s.
In a historical movie, two knights on horseback start from rest 74 m apart and ride directly toward each other to do battle. How far from Sir George's starting point do the knights collide
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You need to determine the density of a ceramic statue. If you suspend it from a spring scale, the scale reads 28.4N. What is the density
a coal-fired electric power plant has an overall efficiency of 33 and an output of 816 megawatts. how many terajoules
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