alleryStart learning →What is the standard value of atmospheric pressure at sea level?
A1.01 x 10^3 Pa
B1.01 x 10^7 Pa
C1.01 x 10^2 Pa
D1.01 x 10^5 Pa
Answer & Solution
Correct answer: D. 1.01 x 10^5 Pa
1. The average pressure at sea level is the standard atmospheric pressure, one atmosphere.
2. Measured in SI units this is 1.01 x 10^5 N/m^2.
3. Since one pascal is one newton per square metre, that is 1.01 x 10^5 Pa, or about 101 kPa.
4. The other three values are the same figure with the power of ten changed, so each is out by a factor of a hundred or more.
_Source: OpenStax College Physics (CC BY 4.0), Ch 11 "Fluid Statics", section 11.4 Variation of Pressure with Depth in a Fluid_
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