For a diatomic quantum mechanical vibrator, the energy difference between adjacent quantum states
A) increases as the integer v increases. B) decreases as the integer v increases.
C) varies randomly as the integer v increases. D) is constant for all values of the integer v.
D
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A 100 kg mass is blown apart into a 60 kg piece and a 40 kg piece. After the blast, the two masses are moving apart with a relative velocity of 60 m/s. The velocity of the 60 kg mass is
A. 88 m/s. B. 67 m/s. C. 51 m/s. D. 40 m/s. E. 24 m/s.
Why are sunsets and sunrises red?
A) The Sun emits more red light when it's near the horizon. B) Sunlight must pass through more atmosphere to reach our eyes at those times, so more blue light is scattered away. C) Sunlight must pass through more atmosphere to reach our eyes at those times, which means it passes through a larger volume of red air molecules. D) The lower temperatures of morning and evening (compared to midday) make the sky redder in color.
What did Galileo incorporate in his study of motion that Aristotle overlooked?
A) the role of distance B) the role of time C) the role of space D) none of the above
Angular Quantities: The diameter of the Moon is 3.47 × 106 m, and it subtends an angle of 0.00904 rad when viewed from the surface of Earth. How far is the Moon from Earth?
Fill in the blank(s) with the appropriate word(s).