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Mathematics>Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

P=Pa+ρgh

The absolute pressure P in a fluid of density ρ at a given depth h can be found with the above equation, where Pa is atmospheric pressure and g is gravitational acceleration. Which of the following correctly expresses the depth in terms of the absolute pressure, atmospheric pressure, fluid density, and gravitational acceleration?

A.h=P-Pa/ρg
B.h=P+Pa/ρg
C.h=P/ρg-Pa
D.h=P/ρg+Pa

答案和解析

答案：A

解析：

Choice A is correct.