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Question
A water line enters a house 2.0 m below ground. A smaller diameter pipe carries water to a faucet 5.0 m above ground, on the second floor. Water flows at 2.0 m/s in the main line and at 7.0 m/s on the second floor. Take the density of water to be 1.0 x103kg/m3. The pressure in the main line is 2.0 x105Pa; then the difference in pressure between the main line and the second floor is:
A) 6.9x104Pa with the main line at the higher pressure
B) 2.3x104Pa with the main line at the higher pressure
C) 6.9x104Pa with the main line at the lower pressure
D) 2.3x104Pa with the main line at the lower pressure
E) 9.1x104Pa with the main line at the higher pressure
Answer
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Related questions
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