If your eyes could only see in gamma rays, what color would best describe your view of your surroundings?
a. white b. red
c. violet d. black
d
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During which type of lunar eclipse does the Moon remain longest in the Earth’s shadow?
A. penumbral B. partial C. total D. For all three types of eclipse, the Moon remains in the Earth’s shadow the same length of time. E. none of the above is accurate
The age of the solar system can be established by radioactive dating of
A) the atmosphere of Mars. B) the oldest meteorites. C) the oldest rocks on Earth. D) the oldest rocks on the Moon. E) It hasn't been done yet, but the age of the solar system could be obtained from a sample of Io's surface.
Three resistors of resistances 4.0 ?, 6.0 ?, and 10 ? are connected in parallel. If this combination is now connected in series with an ideal 12-V battery and a 2.0-? resistor, what is the current through the 10-? resistor?
A) 0.59 A B) 2.7 A C) 11 A D) 16 A
Vega is an A0 V star. Based on this information, which of the following are true? I. Vega has a surface temperature less than the Sun. II. Vega has a mass that is greater than that of the Sun. III. Vega is more luminous than the Sun. IV. Vega is located in the upper left-hand corner in the H-R diagram
a. I & II b. II & III c. II, III, & IV d. I, II, & III e. I, II, III, & IV