If the Kelvin temperature of a body is doubled, the wavelength of the most intense light is ____________ the wavelength originally of the most intense light
a. 1/16th
b. half
c. the same as
d. 2 times
e. 16 times
B
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At about what fraction of the speed of light do our fastest current spacecraft travel?
A) 1/2 B) 1/10 C) 1/100 D) 1/1000 E) 1/10,000
Suppose you had molecular oxygen (O2 ) chilled enough so that it was in liquid form. Which of the following best describes the phase changes that would occur as you heated the liquid oxygen to high temperature?
A) It would evaporate into a gas, then the molecules would dissociate into individual oxygen atoms, then the atoms would become increasingly ionized as you continued to raise the temperature. B) The liquid molecules would quickly dissociate into a liquid of individual oxygen atoms. These atoms would then evaporate into a gas, and then become ionized to make a plasma. C) It would vaporize into a gas, then the molecules would lose electrons until no electrons were left, then the molecules would dissociate into individual oxygen nuclei. D) The cold temperature would first cause the oxygen to solidify. The solid would then sublimate into a gas, which would then become a plasma as the molecules lost their electrons, until finally it consisted of bonded pairs of oxygen nuclei stripped bare of any electrons.
When two identical waves arrive at the same place in phase, there is destructive interference
a. True b. False Indicate whether the statement is true or false
A charged 1-?F capacitor is discharged through a 1.00-k? resistor as shown in the diagram below. If the original charge on the capacitor is Q, what is its charge 1.00 s after the switch is closed?