The Moon pulls more strongly on Earth's near and far side than on its center
a. True
b. False
Indicate whether the statement is true or false
False
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Is space expanding within clusters of galaxies?
A) No, because the universe is not old enough yet for these objects to have begun their expansion. B) No, because expansion of the universe affects only empty space, not space in which matter is present. C) Yes, and that is why clusters tend to grow in size with time. D) No, because their gravity is strong enough to hold them together even while the universe as a whole expands.
If a point charge is located at the center of a cube and the electric flux through one face of the cube is 5.0 Nm2/C, what is the total flux leaving the cube?
A) 20 Nm2/C B) 30 Nm2/C C) 5.0 Nm2/C D) 25 Nm2/C E) 1 Nm2/C
In the color wheel shown below, which colors are the warm colors?
A. red, yellow, blue B. orange, green, purple C. green, blue, purple D. yellow, orange, red
According to the first law of thermodynamics, for any process that may occur within an isolated system, which of the following choices applies?
a. entropy remains constant b. entropy increases c. entropy decreases d. None of the above choices apply.