1. A pump is needed to lift 750 L of water per minute a distance of 25.0...

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1. A pump is needed to lift 750 L of water per minute a distance of 25.0 m. What power (in kW) must the pump be able to deliver? (1 L of water has a mass of 1 kg.)
2. A machine is designed to perform a given amount of work in a given amount of time. A second machine does twice the same amount of work in half the time. Find the power of the second machine compared with the first.
3. A certain machine is designed to perform a given amount of work in a given amount of time. A second machine does 2.5 times the same amount of work in one-third the time. Find the power of the second machine compared with the first.

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Applied Physics

ISBN: 978-0132109277

10th Edition

Authors: Dale ewen, Neill schurter, P. erik gundersen

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