The numerical value of G, the gravitational constant, was determined
A. from knowledge of Earth's mass.
B. from the law of universal gravitation and the value of the acceleration due to gravity.
C. from the value of the Moon's acceleration.
D. by measuring the force between masses in the laboratory.
Answer: D. by measuring the force between masses in the laboratory.
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A. 1.08 B. 1.81 C. 0.81 D. 0.90 E. 1.35 F. Other (specify)
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A) carbon dioxide B) nitrogen C) oxygen D) hydrogen E) ozone
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Indicate whether the statement is true or false
A scalar quantity is defined as
A) a quantity that is specified by a numerical value only. B) a quantity that is specified by using both a numerical value and a direction.