When the Moon and the Sun lie exactly in the same direction in the sky, what phase of the Moon would you see?
A. gibbous
B. full
C. new
D. half
E. crescent
Answer: C
Physics & Space Science
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A one-way mirror works because of
a. interference. b. diffraction. c. its surfaces being half-silvered. d. dispersion. e. polarization.
Physics & Space Science
What mass should be attached to a vertical spring (k = 39.5 N/m) so that the natural vibration frequency of the system will be 1.00 Hz?
A) 2.00 kg B) 1.56 kg C) 1.00 kg D) 6.29 kg E) 39.5 kg
Physics & Space Science
Which law of thermodynamics addresses the direction of heat flow?
A) First law B) Second law C) Third law D) all of the above
Physics & Space Science
Degeneracy pressure is the source of the pressure that stops the crush of gravity in all the following except
A) a brown dwarf. B) a white dwarf. C) a neutron star. D) the core of a high-mass main-sequence star.
Physics & Space Science