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Rufina [12.5K]
2 years ago
13

A barometer reads 780 mm Hg. Mercury has a density of 1.36 x 10^4 kg /m^3.

Physics
2 answers:
iris [78.8K]2 years ago
7 0

The pressure of the atmosphere, when a barometer reads 780 mm Hg.    Mercury which a density of 1.36 x 10^4 kg /m^3 is B 1.1 x 10^5 N/m^2

This problem can be solved using the formula below

P = dgh................. Equation 1

Where P = Pressure of the atmosphere, d = density of the mercury, h = height of the mercury, g = acceleration due to gravity.

From the question,

Given: d = 1.36×10⁴ kg/m³, h = 780 mm = 0.78 m,

Constant: g = 10 m/s²

Substitute these values into equation 1

P = (1.36×10⁴)(10)(0.78)

P = 10.608×10⁴ N/m²

P ≈ 1.1×10⁵ N/m²

Hence the right answer is B. 1.1×10⁵ N/m²

Learn more about Pressure here: brainly.com/question/23603188

frutty [35]2 years ago
5 0

Answer:

B

Explanation:

Pressure = density × g × height

p \:  = (1.36 \times  {10}^{4} )(10)(780 \times  {10}^{ - 3}  ) \\ p = 1.1 \times  {10}^{5}

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<h3>How to determine the initial force </h3>
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<h3>How to determine the new force </h3>
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