If two objects are the same size, but one object has a temperature 3 times as hot (in Kelvin) as the other object, the hotter object emits
A) 3 times as much energy.
B) 9 times as much energy.
C) 12 times as much energy.
D) 81 times as much energy.
E) 27 times as much energy.
D) 81 times as much energy.
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Compared to the volume of its nucleus, the volume of an atom is about
A) the same. B) a thousand times greater. C) a million times greater. D) a billion times greater. E) a trillion times greater.
Suppose Spider-Man throws a web that is 1.00 m long with a velocity of 0.8c (? = 5/3) with respect to the Earth. What will be the length of web as observed by J. Jonah Jameson standing on the Earth?
A. 0.80 m B. 1.67 m C. 1.33 m D. 0.60 m E. 1.00 m
Electric potential is the ratio of electric energy to the amount of electric
A) current. B) resistance. C) charge. D) voltage. E) none of the above
A group of periods is called a(n)
a. epoch. b. millennia. c. era. d. eon.