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Chapter 14: Q. 1 (page 383)
What is the volume in mL of 55 g of a liquid with density 1100 kg/m3?
Volume of the liquid is V = 50 ml.
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The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall. What is the pressure in atmospheres at
this depth?
Wind blows over the house in FIGURE Q14.11. A window on the ground floor is open. Is there an airflow through the house? If so, does the air flow in the window and out the chimney, or in the chimney and out the window? Explain.
a. A liquid of density flows at speed through a horizontal pipe that expands smoothly from diameter to a larger diameter . The pressure in the narrower section is . Find an expression for the pressure in the wider section.
b. A pressure gauge reads as water flows at through a -diameter horizontal pipe. What is the reading of a pressure gauge after the pipe has expanded to in diameter?
It's possible to use the ideal-gas law to show that the density of the earth's atmosphere decreases exponentially with height. That is, , where is the height above sea level, is the density at sea level (you can use the Table value), and is called the scale height of the atmosphere.
a. Determine the value of .
Hint: What is the weight of a column of air?
b. What is the density of the air in Denver, at an elevation of ? What percent of sea-level density is this?
A 5.0-m-diameter solid aluminum sphere is launched into space. By how much does its diameter increase? Give your answer in mm.
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