Part A In a hydroelectric dam, water falls 33 m and then spins a turbine to generate electricity. What is AU of 1.0 kg of water? Express your answer with the appropriate units. ▸ View Available Hint(s) AU = 324 Submit Previous Answers ? J × Incorrect; Try Again; 4 attempts remaining Part B Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 49 MW of electricity? This is a typical value for a small hydroelectric dam. Express your answer in kilograms per second. ▸ View Available Hint(s) ΑΣΦ www ? m 1 s 173933.2 kg/s Submit Previous Answers × Incorrect; Try Again; 5 attempts remaining

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter14: Fluid Mechanics
Section: Chapter Questions
Problem 21P: Water falls over a dam of height h with a mass flow rate of Iv, in units of kilograms per second....
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Part A
In a hydroelectric dam, water falls 33 m and then spins a turbine to generate electricity.
What is AU of 1.0 kg of water?
Express your answer with the appropriate units.
▸ View Available Hint(s)
AU = 324
Submit
Previous Answers
?
J
× Incorrect; Try Again; 4 attempts remaining
Part B
Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 49 MW of electricity? This is a typical
value for a small hydroelectric dam.
Express your answer in kilograms per second.
▸ View Available Hint(s)
ΑΣΦ
www
?
m
1 s
173933.2
kg/s
Submit
Previous Answers
× Incorrect; Try Again; 5 attempts remaining
Transcribed Image Text:Part A In a hydroelectric dam, water falls 33 m and then spins a turbine to generate electricity. What is AU of 1.0 kg of water? Express your answer with the appropriate units. ▸ View Available Hint(s) AU = 324 Submit Previous Answers ? J × Incorrect; Try Again; 4 attempts remaining Part B Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 49 MW of electricity? This is a typical value for a small hydroelectric dam. Express your answer in kilograms per second. ▸ View Available Hint(s) ΑΣΦ www ? m 1 s 173933.2 kg/s Submit Previous Answers × Incorrect; Try Again; 5 attempts remaining
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