The lens in a person's eye is too thick. The condition that this person has is called
A) farsightedness.
B) spherical aberration.
C) astigmatism.
D) chromatic aberration.
E) nearsightedness.
E
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A moderate force will break an egg. However, an egg dropped on the road usually breaks, while one dropped on the grass usually doesn't break. This is because for the egg dropped on the grass:
a. the change in momentum is greater. c. the time interval for stopping is greater. b. the change in momentum is less. d. the time interval for stopping is less.
What is the most accurate way to determine the distance to a distant galaxy (a galaxy that is too far away for us to see individual stars)?
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On the average during good weather, the Earth has a positive surface charge. Which is the usual direction of the Earth's electric field at the Earth's surface?
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