Which of the following is true of Phobos?
A) It is bigger than Mars.
B) It is almost certainly a captured asteroid.
C) Its gravitational acceleration is equivalent to that of Earth.
D) Its atmosphere is completely made of nitrogen.
B
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The water level in identical bowls, A and B, is exactly the same. A contains only water; B contains floating ice as well as water. When we weigh the bowls, we find that
A.
B.
C.
D.
the volume of the water.E.
Two charged particles near each other are released. As the particles move, the velocity of each increases. Therefore, the particles have
A) the same sign. B) the opposite sign. C) not enough information
5.0 A at 110 V flows in the primary of a transformer. Assuming 100% efficiency, how many amps at 24 V can flow in the secondary?
A) 1.1 A B) 4.6 A C) 5.0 A D) 17 A E) 23 A
Equilibrium: The mobile shown in the figure is perfectly balanced, and the horizontal supports have insignificant masses. What must be the masses of the suspended objects m1, m2, and m3 to maintain balance?
What will be an ideal response?