In the situation described in problem N12T.6, what do you think will happen to the satellite’s speed as time passes?
A. It slowly decreases.
B. It remains roughly the same.
C. It slowly increases.
C. It slowly increases.
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Which of the following processes did not contribute gas to Earth's secondary atmosphere?
a. volcanism b. accretion c. oxidation d. comet impacts e. All of the above contributed gases to Earth's secondary atmosphere.
In a large tank of liquid, the hydrostatic pressure at a given depth is a function of
a. depth. b. surface area. c. liquid density. d. Choices a and c are both valid.
Lightning that illuminates clouds with flickering flashes is called
a. heat lightning. b. flash lightning. c. ball lightning. d. bolt lightning.
A segment of wire of total length 3.0 m carries a 15-A current and is formed into a semicircle. Determine the magnitude of the magnetic field at the center of the circle along which the wire is placed.
A. 1.6 ?T B. 4.9 ?T C. 1.0 ?T D. 9.8 ?T E. 15 ?T