Star clusters are important to the study the stellar evolution because stars in a given cluster have the same
a. temperature.
b. mass.
c. age.
d. luminosity.
c
Physics & Space Science
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Explain why "the dark side of the Moon" is an incorrect statement
What will be an ideal response?
Physics & Space Science
Atoms can be photographed by
A) electron beams. B) scanning electron microscopes. C) both of these D) neither of these
Physics & Space Science
Collisions between galaxies
A) are much rarer than collisions between stars. B) can turn elliptical galaxies into spirals. C) cause large numbers of stars to collide and explode. D) cause the gas and dust clouds to collide, leading to rapid star formation. E) are the best explanation for gamma-ray burst events.
Physics & Space Science
A functional group is
a. exemplified by the R in ROH. b. a vertical column in the periodic table. c. exemplified by the COOH in RCOOH. d. a horizontal row in the periodic table.
Physics & Space Science