When Mars is located directly behind the Earth with respect to the Sun in its orbit, it is
a. at the midpoint in the sky between east and west at sunset.
b. at the midpoint in the sky between east and west at midnight.
c. at the midpoint in the sky between east and west at sunrise.
d. at the midpoint in the sky between east and west at noon.
e. not visible in the night sky.
B
You might also like to view...
When we speak of the entire universe (as opposed to the observable universe), we mean
A) all the stars and galaxies that we can see with telescopes. B) all material located within about 14 billion light-years of Earth. C) the sum total of all matter and energy. D) all the matter in galaxies, but not the spaces between the galaxies.
The majority of nuclear power plants depend upon which uranium isotope?
A) U-235 B) U-238 C) U-237 D) U-236 E) U-239
The Phanerozoic is a(n)
a. epoch. b. era. c. eon. d. period.
A conducting rod slides at 4.0 m/s on metal rails separated by 2.0 m. If a current of 40 mA is generated in the circuit with resistance of 0.36 
what is the magnetic field between the rails?
A. 0.028 T
B. 0.11 T
C. 14 mT
D. 3.6 mT
E. 1.8 mT