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Take g = 10 m/s^2 and water density 1000 kg/m^3. What is the gauge pressure at 10 m depth in a lake?
A1 x 10^3 Pa
B1 x 10^4 Pa
C1 x 10^6 Pa
D1 x 10^5 Pa
Answer & Solution
Correct answer: D. 1 x 10^5 Pa
Gauge pressure is rho g h = 1000 x 10 x 10 = 100000 Pa, which is 1 x 10^5 Pa.
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