One body weighs twice as much as another on a seesaw, as such the center of mass is located
a. in the center of the seesaw. b. towards the less massive body.
c. towards the more massive body. d. at the heaviest body.
c
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Intensity of Sound: The sound intensity level 5.0 m from a point source is 95 dB. At what distance will it be 75 dB?
A. 25 m B. 50 m C. 75 m D. 225 m
An empty jar is pushed open-side downward into water so that trapped air cannot escape. As it is pushed deeper, the buoyant force on the jar
A) increases. B) decreases. C) increases, then decreases. D) decreases, then increases. E) remains the same.
Planet A has twice the mass of Planet B. From this information, what can we conclude about the acceleration due to gravity at the surface of Planet A compared to that at the surface of Planet B?
A) The acceleration due to gravity on Planet A is greater than the acceleration due to gravity on Planet B, but we cannot say how much greater. B) The acceleration due to gravity on Planet A must be four times as great as the acceleration due to gravity on Planet B. C) The acceleration due to gravity on Planet A must be twice as great as the acceleration due to gravity on Planet B. D) The acceleration due to gravity on Planet A is the same as the acceleration due to gravity on Planet B. E) We cannot conclude anything about the acceleration due to gravity on Planet A without knowing the radii of the two planets.
Rain drops that freeze prior to striking the warm ground is a(n) ______________ storm
a. hail b. rain c. ice d. snow