A) If you are on the near side of the Moon, the side facing Earth, describe what you would see of Earth over one lunar cycle. b) If you are on the far side of the Moon, the side facing away from Earth, describe what you would see of Earth over one lunar cycle
What will be an ideal response?
a) You would always be facing Earth and you would see Earth rotate once per Earth day for the entire lunar cycle. b) You would not see Earth at all over the entire lunar cycle.
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Which of the following best describes what would happen if a 1.5-solar-mass neutron star, with a diameter of a few kilometers, were suddenly (for unexplained reason) to appear in your home town?
A) The combined mass of Earth and the neutron star would cause the neutron star to collapse into a black hole. B) It would rapidly sink to the center of Earth. C) The entire Earth would end up as a thin layer, about 1 cm thick, over the surface of the neutron star. D) It would crash into Earth, throwing vast amounts of dust into the atmosphere that, in turn, would cool the Earth; this is probably what caused the extinction of the dinosaurs.
If you think of a battery as an electric charge "pump," the battery voltage is analogous to __________
Fill in the blank(s) with correct word
Force on a Moving Charge: A proton is to orbit Earth at the equator using Earth's magnetic field to supply part of the necessary centripetal force. In what direction should the proton move?
A. upward B. northward C. southward D. eastward E. westward
A lathe, initially at rest, accelerates at 0.60 rad/s2 for 10 s, then runs at a constant angular velocity for 20 s, and finally decelerates uniformly for 10 s to come to a complete stop. What is its average angular velocity?
A) 4.5 rad/s B) 3.5 rad/s C) 5.0 rad/s D) 3.0 rad/s E) 4.0 rad/s