The quasars with the largest presently known redshifts are close to:
A) .96.
B) 3.
C) 6.
D) 10.
E) 65.
C
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The theory that Mercury shrank slightly when it was young has been proposed to explain
a. extended lava plains. b. large craters. c. magnetic field. d. lobate scarps. e. regolith.
Compared to a giant iceberg, a hot cup of coffee has
A) more thermal energy at higher temperature. B) less thermal energy at higher temperature. C) about the same thermal energy but at a higher temperature. D) none of the above
A simple pendulum of length 2.00 m has a mass of 100 g attached. It is drawn back 30.0° and then released. What is the maximum speed of the mass?
a. 1.14 m/s c. 2.29 m/s b. 4.58 m/s d. 1.62 m/s
A ball rolls over the edge of a table with a horizontal velocity v m/s. The height of the table is 1.6 m and the horizontal range of the ball from the base of the table is 20 m. What is the initial speed of the ball?
A) 9.8 m/s B) 20 m/s C) 35 m/s D) 4.9 m/s E) 70 m/s