College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Find the weight of the air in a living room with a 4.0 m x 5.0 m floor and a ceiling 3.0 m high. (Give your answer in N.)
The density of air is 1.29x10 kg/m3.
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- The Earth's atmosphere at sea level and under normal conditions has a pressure of 1.01x105 Pa, which is due to the weight of the air above the ground pushing down on it. How much force due to this pressure is exerted on the roof of a building whose dimensions are 10.2 m long and 14.5 m wide?arrow_forwardA box-shaped metal can has dimensions 5 in. by 13 in. by 3 in. high. All of the air inside the can is removed with a vacuum pump. Assuming normal atmospheric pressure outside the can, find the total force (in Ib) on one of the 5-by-13 in. sides. (Enter the magnitude.) Ibarrow_forwardWhat is the approximate mass of the air in our 10 m x 12 m x 4 m physics lab room? The density of the air is 1000 g/cm^3.arrow_forward
- A tall graduated cylinder contains 7 cm of oil (density of 825 kg/m3kg/m3) on top of 20 cm of water (density of 1000 kg/m3kg/m3). The cylinder is open to the air. What is the pressure in the water, 3 cm above the bottom of the cylinder? (in Pa) 1.0323×105 1.0335×105 1.0353×105 1.0294×105 1.0157×105arrow_forwardA 100 mL beaker holds 120 g of liquid. What is the liquid’s density in SI units?arrow_forwardAtmospheric pressure is about 1.00 × 105 Pa on average. What is the downward force of the air on a desktop with surface area 1.01 m2?arrow_forward
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