Answered: 1) As the cork begins to move, what…

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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1) As the cork begins to move, what happens to the air inside the bottle? (Select all that apply.)

a)The air pressure inside remains the same.

b)The volume of the air inside decreases.

c)The volume of the air inside remains the same.

d)The volume of the air inside increases.

e)The air pressure inside increases.

f)The air pressure inside decreases.

2) A beachcomber finds a corked bottle containing a message. The air in the bottle is at atmospheric pressure and a temperature of 30.3°C. The cork has a cross-sectional area of 2.10 cm². The beachcomber places the bottle over a fire, figuring that the increased pressure will push out the cork. At a temperature of 99°C the cork is ejected from the bottle.

(a) What was the pressure in the bottle just before the cork left it?

(b) What force of friction held the cork in place? Neglect any change in the volume of the bottle.

3) A tire contains air at a gauge pressure of 5.17 10⁴ Pa at a temperature of 25.0°C. After nightfall, the temperature drops to -10.0°C. Find the new gauge pressure in the tire. (Recall that gauge pressure is absolute pressure minus atmospheric pressure. Assume constant volume.)

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