57. A room has a volume of 120 m³. An air-conditioning system is toreplace the air in this room every twenty minutes, using ducts that have asquare cross section. Assuming that air can be treated as an incompress-ible fluid, find the length of a side of the square if the air speed within theducts is (a) 3.0 m/s and (b) 5.0 m/s.

The volume, V=120 m3 The expression for the area, A=L2 The expression for the flow rate, Q=Av=Vt

Answered: 57. A room has a volume of 120 m³. An…

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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