Which of the following has the effect of reducing the gravitational force between two objects?
A) Increasing the mass of either one of the objects.
B) Moving the two objects closer together.
C) Both of the above.
D) Moving the two objects farther apart.
E) None of the above.
D
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Elastic Collisions: In a game of pool, the white cue ball hits the #5 ball and stops, while the #5 ball moves away with the same velocity as the cue ball had originally. Both balls have the same mass. This type of collision is
A. somewhat inelastic. B. elastic. C. completely inelastic.
Which of these is the classic continuous spectrum?
A) sunlight B) a rainbow C) a neon light D) a fluorescent light E) a glowing nebula, such as M-42
The diagrams below show forces of magnitude F applied to an equilateral triangular block of uniform thickness. In which diagram(s) is(are) the block in equilibrium?
A. A B. B C. C D. D E. A and B
What is permeation?
What will be an ideal response?