The size of a black hole, its Schwarzschild radius, is simply proportional to its _____
A) mass
B) luminosity
C) temperature
D) density
A
Physics & Space Science
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Where is Jupiter's ring located? What is it made of, and why?
What will be an ideal response?
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Which types of galaxies have a clearly defined spheroidal component?
A) spirals only B) irregulars only C) lenticulars only D) ellipticals only E) all but irregulars
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A sound level of 80 dB has __________ times the amplitude of a 60 dB sound
Fill in the blank(s) with correct word
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The bigger diameter gears on the rear wheel of a multi-speed bike allow the rider to
A. decrease the moment of inertia of the wheel. B. increase the moment of inertia of the wheel. C. exert more force on the wheel. D. exert more torque on the wheel.
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