When an object falls through the air, as velocity increases the net force
A) increases.
B) decreases.
C) remains the same whether in air or in a vacuum.
Answer: B
Physics & Space Science
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Fill in the blank(s) with correct word
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a. Fahrenheit. b. Celsius. c. Kelvin. d. none of the above.
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The index of refraction of a substance is
a)equal to the speed of light in vacuum divided by its speed in that substance. b)equal to the speed of light in that substance. c)the same as the angle of refraction. d)the same as the angle of incidence. ? ? ?
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