The true weight of an object can be measured in a vacuum, where buoyant forces are absent. A measurement in air, however, is disturbed by buoyant forces. An object of volume V is weighed in air on an equal-arm balance with the use of counterweights of density p. Representing the density of air as Pair and the balance reading as F, show that the true weight Fis F' F = F'+ (v- V Pairg Pg,

The true weight of an object can be measured in a vacuum, where buoyant forces are absent. A measurement in air, however, is disturbed by buoyant forces. An object of volume V is weighed in air on an equal-arm balance with the use of counterweights of density p. Representing the density of air as Pair and the balance reading as F, show that the true weight Fis F' F = F'+ (v- V Pairg Pg,

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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Question

The true weight of an object can be measured in a vacuum,
where buoyant forces are absent. A measurement in air,
however, is disturbed by buoyant forces. An object of volume
V is weighed in air on an equal-arm balance with the use
of counterweights of density p. Representing the density of
air as Pair and the balance reading as F, show that the true
weight Fis
F'
F = F'+
(v-
V
Pairg
Pg,

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