A quasar's spectrum is hugely redshifted. What does this large redshift tells us about the quasar?
A) the composition of the quasar
B) the distance to the quasar
C) the mass of the quasar's central, supermassive black hole
D) the type of host galaxy in which the quasar resides
B) the distance to the quasar
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Four 12
resistors are connected together. What is the least resistance that can be attained with these resistors?
A. 12 
B. 6.0
C. 3.0
D. 2.0
E. 1.0
The Bohr model correctly predicts the energy for the ground state of the hydrogen atom
Indicate whether the statement is true or false
The orbit of Comet UX209 about the Sun is not a circle but it orbits once every 365 days, just as Earth does. UX209 is closer to the Sun in April than it is in October. Thus, the speed of UX209 as it moves along its orbit is
A. steadily decreasing all year long. B. steadily increasing all year long. C. greater in October than it is in April. D. greater in April than in October. E. the same all year long.
Which of the following is a method of energy transport?
a. convection b. radiation c. conduction d. All of the other choices are correct.