White dwarfs are rare objects
a. True
b. False
Indicate whether the statement is true or false
False
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Albert Michelson is primarily remembered for
A) proving length contraction. B) not being able to detect an "ether". C) his theory published in 1916. D) proving that the speed of light is not constant. E) proving time dilation.
According to Lenz's law the direction of an induced current in a conductor will be that which tends to produce which of the following effects?
a. enhance the effect which produces it b. produce a greater heating effect c. produce the greatest voltage d. oppose the effect which produces it
Size of the Nucleus: To a reasonable approximation, the density of a nucleus
A. is independent of the mass number. B. is greater for large-Z nuclei. C. is smaller for large-Z nuclei. D. varies unpredictably for different values of Z.
How many moons is Pluto known to have?
A) none B) three C) one D) four E) two