Explanation Consider the dimension of the physics classroom is ( 5 m × 4 m × 4 m ) . The density of the air is 1.29 kg / m 3 . The expression for the density of the air is, ρ = m V Here, m is the mass of the air. V is the volume of the air in the classroom. Rearrange the above equation for m . m = ρ V The formula to calculate weight of the air in the classroom is, W = m g Here, g is the acceleration due to gravity. Substitute ρ V for m in above equation. W = ρ V g Substitute 1.29 kg / m 3 for ρ , ( 5 m × 4 m × 4 m ) for V and 9

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ISBN: 9780321976444

Author: James S. Walker

Publisher: PEARSON

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From the equation of pressure, pressure is directly proportional to the applied force.

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Chapter 15, Problem 1PCE

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The weight of the air in your physics classroom.

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Chapter 15 Solutions

Physics (5th Edition)

Ch. 15.1 - Prob. 1EYU Ch. 15.2 - A force F acts on a circular area of radius r....Ch. 15.3 - Is the increase in pressure from the surface of...Ch. 15.4 - Is the buoyant force exerted on a cubical block of...Ch. 15.5 - A cup is filled to the brim with water. Floating...Ch. 15.6 - Water flows with a speed V through a pipe. If the...Ch. 15.7 - Water flows through a pipe with a varying...Ch. 15.8 - Prob. 8EYU Ch. 15.9 - Which pipe requires a greater pressure difference...Ch. 15 - Suppose you drink a liquid through a straw....

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The weight of the air in your physics classroom.

Solution Summary: The author explains the formula to calculate the weight of the air in the classroom is, m=rho V.

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