Jorge wishes to observe the progress of his vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum. So, Jorge places a mercury barometer inside the bell jar and follows the height of the mercury column as the pump chugs away. The density of mercury is 1.36 × 104 kg/m³ and the standard atmospheric pressure is 1.01 × 105 Pa. The acceleration g due to gravity is 9.81 m/s². When he observes a height of 7.89 mm of mercury, what fraction of atmospheric pressure, expressed as a percentage P, has Jorge achieved in his bell jar? P = %

Jorge wishes to observe the progress of his vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum. So, Jorge places a mercury barometer inside the bell jar and follows the height of the mercury column as the pump chugs away. The density of mercury is 1.36 × 104 kg/m³ and the standard atmospheric pressure is 1.01 × 105 Pa. The acceleration g due to gravity is 9.81 m/s². When he observes a height of 7.89 mm of mercury, what fraction of atmospheric pressure, expressed as a percentage P, has Jorge achieved in his bell jar? P = %

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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