Pressure in a Liquid: An air bubble underwater has the same pressure as that of the surrounding water. As the air bubble rises toward the surface (and its temperature remains constant), the volume of the air bubble
A. increases.
B. decreases.
C. remains constant.
D. increases or decreases, depending on the rate it rises.
Answer: A
Physics & Space Science
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Pressure: The weight of a 1200-kg car is supported equally by the four tires, which are inflated to the same gauge pressure. What gauge pressure is required so the area of contact of each tire with the road is 100 cm2?
A. 12 × 105 Pa B. 12 × 104 Pa C. 2.9 × 105 Pa D. 2.9 × 104 Pa
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A) 8 B) 14 C) 6 D) 1 E) none
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The dominant semiconducting material now in use is
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