When two galaxies collide, they pass through each other and their stars almost never collide
a. True
b. False
Indicate whether the statement is true or false
True
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The assumption of isotropy states that
a. the universe looks the same at all epochs. b. the universe looks the same from all locations over sufficiently great distances. c. the universe looks the same in all directions over sufficiently great distances. d. all of the above e. none of the above
A 2000-kg sailboat experiences an eastward force of 3000 N by the ocean tide and a wind force against its sails of magnitude 6000 N directed toward the northwest (45° N of W). What is the magnitude and direction of the resultant acceleration?
The general formula 
is that of
a.
an amide.
b.
an alkyl halide.
c.
an alcohol.
d.
none of these
The peak of the radiation curve of a blackbody moves toward larger wavelength as its temperature increases
Indicate whether the statement is true or false