The H-R diagram is a plot of stars' ________.
A. luminosity vs. temperature
B. mass vs. diameter
C. temperature vs. mass
D. mass vs. luminosity
Answer: A
Physics & Space Science
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Which of the following temperatures is the lowest?
A. 0°F B. 0°C C. 263 K D. All of these choices are the same
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Briefly explain diffraction fringes
What will be an ideal response?
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All celestial objects rise in the east and set in the west because
A. Earth is rotating from west to east. B. Earth is orbiting around the Sun from east to west. C. Earth is rotating from east to west. D. the celestial sphere is rotating from east to west.
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If the amplitude of the motion of a simple harmonic oscillator is doubled, by what factor does the maximum speed of the oscillator change?
A) 2 B) 4 C) It does not change. D) 1/2 E) 1/4
Physics & Space Science