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
Answer:
the time required for the sound to travel between the whales 0.66 S.
Explanation:
As given in the problem, the velocity of sound wave (
) is governed by the equation
![v = \sqrt{\dfrac{B}{\rho}}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cdfrac%7BB%7D%7B%5Crho%7D%7D)
Given,
and ![\rho = 1046 Kg m^{-3}](https://tex.z-dn.net/?f=%5Crho%20%3D%201046%20Kg%20m%5E%7B-3%7D)
So for salt water, the velocity of sound wave (
) can be written as
![v_{s} = \sqrt{\dfrac{2.38 \times 10^{9}}{1046}} ms^{-1} = 1.508 \times 10^{3} ms^{-1}](https://tex.z-dn.net/?f=v_%7Bs%7D%20%3D%20%5Csqrt%7B%5Cdfrac%7B2.38%20%5Ctimes%2010%5E%7B9%7D%7D%7B1046%7D%7D%20ms%5E%7B-1%7D%20%3D%201.508%20%5Ctimes%2010%5E%7B3%7D%20ms%5E%7B-1%7D)
As the whales are d = 1 Km or 1000 m apart from each other, so the time (
) required for the sound wave to travel this distance is given by
![t = \dfrac{d}{v_{s}} = \dfrac{1000 m}{1.508 \times 10^{3}} = 0.66 s](https://tex.z-dn.net/?f=t%20%3D%20%5Cdfrac%7Bd%7D%7Bv_%7Bs%7D%7D%20%3D%20%5Cdfrac%7B1000%20m%7D%7B1.508%20%5Ctimes%2010%5E%7B3%7D%7D%20%3D%200.66%20s)
Answer:
A person must be "voluntary".
Explanation:
The research project has so far been implementing this very same factual information on either the basis of results for such an induced conformational.
- A report that serves to protect investigators from unintentional reporting of personally identifiable details that were acquired during a research project.
- This could be characterized as constantly looking for new consequences on just about any particular subject based on assumptions, statistics, and conducting an investigation of the explanations.
Catabolism- <span>The energy releasing process that breaks down large molecules into smaller </span>