A derived unit
a. involves only length.
b. is a combination of units.
c. applies only to density.
d. is not found in the metric system.
b
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Acceleration is greater for a satellite when it is at the
A) apogee (farthest point). B) perigee (closest point). C) zenith. D) same acceleration at all of the above places.
At what, if any, temperature are the numerical readings on the Fahrenheit and Celsius scales the same?
A) -30° B) -40° C) -50° D) -60° E) They can never read the same because they are based on different zeroes.
According to current models, where does the element gold come from?
A) mergers of neutron stars B) the supernova explosions of high-mass stars C) the late stages of fusion in low-mass stars D) the Big Bang