When a gas is changed to a liquid phase, the gas
A) releases energy.
B) absorbs energy.
C) neither of these
Answer: A
Physics & Space Science
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A car travels in a due northerly direction at a speed of 55 km/h. The traces of rain on the side windows of the car make an angle of 60 degrees with respect to the horizontal. If the rain is falling vertically with respect to the Earth, what is the speed of the rain with respect to the Earth?
a. 48 km/h b. 95 km/h c. 58 km/h d. 32 km/h e. 80 km/h
Physics & Space Science
Which relative dating principle states that in an undeformed sequence of sedimentary rocks, each layer is older than the one above and younger than the one below?
A) original horizontality B) superposition C) cross-cutting D) inclusion
Physics & Space Science
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Physics & Space Science