The rings of Uranus were discovered by the Voyager 2 spacecraft
Indicate whether the statement is true or false
F
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Tidal friction between the Earth and the Moon causes
A) the Earth's rotation to slow gradually and the Moon to move gradually closer to the Earth B) the Earth's rotation to quicken gradually and the Moon to move gradually farther from the Earth C) the Earth's rotation to slow gradually and the Moon to move gradually farther from the Earth D) the Earth's rotation to quicken gradually and the Moon to move gradually closer to the Earth
Series/Parallel Circuits: If V = 20 V and the battery is ideal, what is the current through R3 in the figure?
A. 0.050 A B. 0.20 A C. 1.0 A D. 4.0 A
What kind of galaxy is the 'Milky Way?'
A: Spiral. B: Elliptical. C: Compound. D: Dwarf. E: Irregular.
A magician can make a candle look as if it is burning under water by focusing light from a candle flame burning in air directly on top of an underwater candle. To do this you want to use a (Hint: eliminate those that cannot work.)
a. concave mirror farther than one focal length from the burning candle. b. a convex mirror farther than one focal length from the burning candle. c. a biconcave lens farther than one focal length from the burning candle. d. a concave mirror closer than one focal length to the burning candle. e. a convex lens closer than one focal length to the burning candle.