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Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?
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Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?
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Troy pushes on a car for 10 seconds, during which he applies an impulse of 300 kg•m/s. what force do...
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