College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Concept explainers

Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem …
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Question
12 How much force (N) does the atmosphere exert on one side of a wall if it measures 2.50 m high and 5.00 m long? Assume the wall is at sea level. -F
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Transcribed Image Text:12 How much force (N) does the atmosphere exert on one side of a wall if it measures 2.50 m high and 5.00 m long? Assume the wall is at sea level. -F
13 13 Here is my grandson walking on a steel bridge on a cool February day. The temperature that day was 5 °C. I measured the length of one of the long steel girders to be 51 ft. What will be the change in length (m) of one girder on a hot August day when the temperature reaches 29C? (1 m 3.281 ft), (1km = 1000m) (5280 ft = 1 mile) (1 mile = 1.609 km) %3D TABLE 14.1 Coefficients of linear expansion for selected materials Material a (Kor C) Quartz (fused) 0.04 x 10 Invar (nickel- iron alloy) 0.09 X 10 Glass Steel Copper 17 X 10 20 x 10 Alaminum 2.4x 10
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Transcribed Image Text:13 13 Here is my grandson walking on a steel bridge on a cool February day. The temperature that day was 5 °C. I measured the length of one of the long steel girders to be 51 ft. What will be the change in length (m) of one girder on a hot August day when the temperature reaches 29C? (1 m 3.281 ft), (1km = 1000m) (5280 ft = 1 mile) (1 mile = 1.609 km) %3D TABLE 14.1 Coefficients of linear expansion for selected materials Material a (Kor C) Quartz (fused) 0.04 x 10 Invar (nickel- iron alloy) 0.09 X 10 Glass Steel Copper 17 X 10 20 x 10 Alaminum 2.4x 10
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