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Alex
1 year ago
12

which of the following instruments measures air pressure? group of answer choices barometer hygrometer radiometer thermometer

Physics
1 answer:
Zepler [3.9K]1 year ago
4 0

The tool used to gauge atmospheric pressure is a barometer. Concerning the device used to gauge air pressure, we have been questioned.

  • Mercury is used in barometers. A reservoir of mercury is compressed by atmospheric pressure, and depending on the force of the air, the mercury is propelled up into the tube to a specific height. A straightforward barometer consists of a long glass tube that is filled with mercury and is closed at one end and open at the other. As most cases, the air pressure is expressed in mm Hg.
  • By delivering quick, precise information on a range of metrics, Radiometer's products and solutions aid in the diagnosis and treatment of critically ill hospital patients.
  • A hygrometer is a device that gauges the moisture content of soil, air, or restricted spaces. Measurements of other quantities, such as temperature, pressure, mass, or a mechanical or electrical change in a substance as moisture is absorbed, are typically used as the basis for humidity measurement systems.
  • Voltmeters are used to measure voltages, while thermometers measure temperature.

To know more about barometer

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Explanation:

Value of the cross-sectional area is as follows.

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The given data is as follows.

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Now, we will calculate maximum load from allowable stress as follows.

           P_{max} = \sigma_{a}A

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Now, maximum load from shear stress is as follows.

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Hence, P_{max} will be calculated as follows.

       P_{max} = min((P_{max})_{\sigma}, (P_{max})_{\tau})

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Thus, we can conclude that the maximum permissible load P_{max} is 48990 lb.

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