Warm air has a higher capacity for water vapor, because in warm air
A) fast-moving water-vapor molecules are too energetic to stick together.
B) molecules expand.
C) water-vapor molecules condense.
D) there are more water vapor molecules than in cool air.
Answer: A
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A 4.0 kg object is moving with speed 2.0 m/s. A 1.0 kg object is moving with speed 4.0 m/s. The same stopping force is exerted on both objects and both objects are brought to rest. Which object travels the greater distance before stopping?
A) the 4.0 kg object B) the 1.0 kg object C) Both objects travel the same distance. D) It cannot be determined from the information given.
The use of fiberglass insulation in the outer walls of a building is intended to minimize heat transfer through the wall by what process?
a. conduction c. convection b. radiation d. vaporization
Scientists always try to
A) be as subjective as possible B) be as objective as possible C) disagree with the current paradigm of the time D) agree with the current paradigm of the time
Estimated uncertainty is meant to take into account precision but not accuracy
Indicate whether the statement is true or false