Find the motor
A 120-V electric motor is needed that can do the equivalent of lifting a 100-lb weight 10 ft in 1 min. Assuming the motor is 85% efficient, find the motor current.
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a lever like that shown in figure 513c is used as a hand lever brake on a machine to activate the brake 5 lb of force
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a small gasoline engine can put out 12000 ft middot lbmin of mechanical power the engine is used to drive an electric
a 120-v electric motor is needed that can do the equivalent of lifting a 100-lb weight 10 ft in 1 min assuming the
your states promised pension payments amount to 10 billion annually and you expect this obligation to grow at 2 per
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