10. A diver swims from 2 meters to 10 meters below the surface of a lake. What is the pressure difference?
(A) 54.5 kPa
(B) 62.1 kPa
(C) 78.4 kPa
(D) 82.8 kPa
(E) 98.2 kPa
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統計: A(2), B(0), C(39), D(19), E(0) #2016112
統計: A(2), B(0), C(39), D(19), E(0) #2016112
詳解 (共 2 筆)
#7301017
ΔP=ρgΔh, Δh=10−2=8 m
ΔP=1000×9.8×8=78400 Pa=78.4 kPa
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