9. Work & Energy
Intro to Calculating Work
5:41 minutes
Problem 9b
Textbook Question
Textbook QuestionThe energy used to pump liquids and gases through pipes is a significant fraction of the total energy consumption in the United States. Consider a small volume V of a liquid that has density p. Assume that the fluid is nonviscous so that friction with the pipe walls can be neglected. (a) An upward-pushing force from a pump lifts this volume of fluid a height h at constant speed. How much work does the pump do?
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