What is the angular speed of a record that rotates at 33-1/3 rpm?
A) 1.74 rad/s
B) 33.3? rad/s
C) 33.3/? rad/s
D) 3.49 rad/s
E) 2.77 rad/s
D
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_____________, or dried seas of dark basalt, are only seen on the near side of the Moon, the side that faces Earth
Fill in the blank(s) with correct word
Rilles on the Moon are due to volcanism, not impacts
Indicate whether the statement is true or false
The greatest red shifts are observed for those galaxies that are
A. near our galactic equator. B. the brightest. C. nearest our galaxy. D. at the greatest distance from us.
An asteroid has a perihelion (the orbit's closest approach to the Sun) of 2.5 AU and a period of revolution of 8.0 y. What is its greatest distance from the Sun (its aphelion)? (Hint: For an elliptical orbit, the effective radius of the orbit is half the sum of the nearest distance to the Sun and the greatest distance from the Sun.)
a. 8.0 AU c. 5.5 AU b. 6.5 AU d. 2.5 AU