The total mass of the Kuiper belt is greater than that of the asteroid belt. (T/F)
What will be an ideal response?
True
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Two small balls, A and B, attract each other gravitationally, exerting a force of magnitude F on each other
If we now double both masses and the separation of the balls, what will now be the magnitude of the attractive force that they exert on each one? A) 16F B) 8F C) 4F D) F E) F/4
Comets belong to the ________.
A. dwarf planets and Asteroid belt B. Asteroid belt and Kuiper belt C. Kuiper belt and Oort cloud D. Oort cloud and dwarf planets E. None of these choices is correct.
In the figure, the coefficient of kinetic friction between the surface and the larger block is 0.20, and the coefficient of kinetic friction between the surface and the smaller block is 0.30. If F = 14 N and M = 1.0 kg, what is the magnitude of the acceleration of either block?
A. 2.0 m/s2 B. 1.3 m/s2 C. 1.5 m/s2 D. 1.8 m/s2 E. 3.5 m/s2
A 2.00 m-long 6.00 kg ladder pivoted at the top hangs down from a platform at the circus. A 42.0 kg trapeze artist climbs to a point where her center of mass is at the center of the ladder and swings at the system's natural frequency. The angular frequency (in s-1) of the system of ladder and woman is
a. 1.01. b. 3.07. c. 4.03. d. 8.05. e. 16.2.