________ galaxies may contain a few million to few trillion solar masses.
A. Spiral
B. Independent of their type
C. Irregular
D. Elliptical
Answer: D
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If you draw a spacetime diagram, the worldline of an object that is stationary in your reference frame is
A) vertical. B) horizontal. C) slanted. D) curved. E) a circle.
A particle is moving at constant velocity. Its position at t = 1.0 s is 3.0 m and its position at t = 4.0 s is 15.0 m. What is the slope of the position-time graph for this particle?
a. 0, since this is a constant velocity situation. b. 4.0 m/s c. 4.0 m/s2 d. 9.0 m/s e. 12 m/s2
A heat map is an analytical tool that uses color to represent data.
Answer the following statement true (T) or false (F)
Earth's rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star
Fill in the blank(s) with correct word