Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter15: Fluid Mechanics
Section: Chapter Questions
Problem 29P: How many cubic meters of helium are required to lift a balloon with a 400-kg payload to a height of...
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Question
Air pressure decreases at a rate of 2.25 Pa(pascals) per kilometer in the eastward direction. In addition, the air pressure is decreasing at a constant rate with respect to time everywhere. A ship sailing eastward at 6 km/hour past an island takes barometer readings and records a pressure drop of 70 Pain 2 hours. Estimate the time rate of change of air pressure on the island. (Pascal is a unit of air pressure 1Pa=1N/m2=1kg/m∗s2^2)
Time rate of change of air pressure =---- Pa/hr
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