One of the fundamental principles of stellar evolution is that the more massive a star is
A) the more heavy elements it contains
B) the more planets it has around it
C) the faster it evolves
D) the slower it evolves
C
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Neutrinos are created in reactions in the _______ of the Sun
a. corona b. chromosphere c. photosphere d. core
Molecular Speeds: What is the average translational kinetic energy of an ideal gas at 819 K? The Boltzmann constant is 1.38 × 10-23 J/K.
A. 1.70 × 10-20 J B. 5.65 × 10-21 J C. 1.13 × 10-17 J D. 3.77 × 10-19 J
At approximately what time would a full Moon be on your Meridian
a) noon b) midnight c) 6pm
A student in the front of a school bus tosses a ball to another student in the back of the bus while the bus is moving forward at constant velocity. The speed of the ball as seen by a stationary observer in the street
A. is less than that observed inside the bus. B. is the same as that observed inside the bus. C. is greater than that observed inside the bus. D. may be either greater or smaller than that observed inside the bus. E. may be either greater, smaller, or equal to that observed inside the bus.