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A closed bulb mercury manometer is filled with gas, and the bulb pressure is 94.9 kPa. If the mercury in the bulb side is 1.93 cm higher than in the atmospheric side, find the atmospheric pressure in kPa. The density of mercury is 13540 kg/m³.

A) 95.4 kPa
B) 97.6 kPa
C) 94.2 kPa
D) 98.3 kPa

Answer :

Final answer:

To find the atmospheric pressure using a closed bulb mercury manometer filled with gas, apply the equation p = hpg where h is the height of the fluid, p is the density of the fluid, and g is acceleration due to gravity. Given specific values, the atmospheric pressure can be calculated to be around A) 95.4 kPa.

Explanation:

The atmospheric pressure can be calculated using the equation:

p = hpg

Given that the height difference of mercury in the manometer is 1.93 cm, and the density of mercury is 13540 kg/m³, we can find the atmospheric pressure to be approximately 95.4 kPa.

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