How easy would it be for future astronauts to psychologically adapt to living on Mars?
A) fairly easy because the Martian day is only about 40 minutes longer than the terrestrial day
B) extremely easy because the Martian day is exactly the same length as the terrestrial day
C) very difficult because the Martian day is much longer than the terrestrial day
D) very difficult because the Martian day is much shorter than the terrestrial day
A
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A white dwarf is supported against its own gravity by the inability of its _______________ electrons to pack into a smaller volume
Fill in the blank(s) with correct word
Every fundamental charged particle has an antiparticle such that when the particle and antiparticle collide, they annihilate each other to create two (uncharged) photons. What does conservation of charge imply about how a particle’s charge compares to that of its antiparticle? The particle’s and antiparticle’s charges
A. must be identical in sign and magnitude. B. must have opposite signs and the same magnitude. C. must have opposite signs, maybe different magnitudes. D. must each be zero. E. are not constrained at all by charge conservation.
A spherical conducting shell has a uniform surface charge density of 
What is its radius if the electric field 1.5 m from its center is 17 N/C outward?
A. 3.9 cm B. 4.7 cm C. 3.2 cm D. 9.5 cm E. 6.4 cm
Index of Refraction: Light having a frequency in vacuum of 6.0 × 1014 Hz enters a liquid of refractive index 2.0. What is the frequency of the light in this liquid? (c = 3.0 × 108 m/s)
A. 12 × 1014 Hz B. 6.0 × 1014 Hz C. 3.0 × 1014 Hz D. 1.5 × 1014 Hz E. 2.0 × 1014 Hz