Physics, 14.07.2020 01:01 BreBreDoeCCx
Which statement describes a characteristic of a spiral galaxy?
O It is shaped like a pinwheel.
O It has no new star formation.
O It is made only of gases.
O It is smaller than other types of galaxies.
Answers: 1
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
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Awaiver with a period of 0.008 second has a frequency of a. 800hz. b. 80hz. c. 125hz. d. 12.5hz.
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Which statement describes a characteristic of a spiral galaxy?
O It is shaped like a pinwheel.
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