A 50-kg sack is raised 2 m in the same time a 25-kg sack is raised 4 m. Compared to the power needed to raise the 25-kg sack, the power needed to lift the 50-kg sack is
A. half as much.
B. twice as much.
C. the same.
D. none of the above
Answer: C
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As the temperature rises, how does this affect relative humidity?
A) The temperature rise does not affect relative humidity. B) Relative humidity decreases as temperature rises. C) Relative humidity increases as temperature rises. D) The temperature rise causes relative humidity to fluctuate.
The energy release in a fire strongly depends on the volume of material consumed, but not on the chemical composition of the plants and organic debris.
Answer the following statement true (T) or false (F)
An accurate forecast
a. ?always shows skill. b. ?may or may not show skill. c. ?never shows skill. d. ?requires complex computer equipment. e. ?can only be accomplished after many years of experience.
________ is the critical temperature at which saturation is reached
A) Absolute humidity B) The dew point C) The flash point D) Specific humidity E) Relative humidity