A quantum is a
a. discrete amount.
b. fundamental property.
c. unit of momentum.
d. proton.
a
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Sgr A* emits radio waves
a. True b. False Indicate whether the statement is true or false
Type I supernovae result from white dwarf stars that have reached a mass of ________ solar masses from material transferred by a giant companion
Fill in the blank(s) with correct word
Which of the following are characteristics of laser light? (There may be more than one correct choice.)
A) It is coherent. B) It contains a full spectrum of wavelengths. C) It is produced by an inverted population of atoms.
According to cosmic inflation theory, the distribution of galaxies we see today is a consequence of
A) the evolution of dark matter. B) quantum fluctuations in the exceedingly small early universe. C) random expansion. D) some force yet to be identified.