Which expression is dimensionally consistent with an expression that would yield a value for time?1? (v is velocity, x is distance, and t is time)
a. v/x
b. v2/x
c. x/t
d. v2t
a
Physics & Space Science
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Briefly describe Sagittarius A*
What will be an ideal response?
Physics & Space Science
The radio lobes that are on each side of some radio galaxies and jets from them produce mainly
a. 21-cm radiation. b. synchrotron radiation. c. black body radiation. d. emission lies due to hydrogen. e. absorption lines due to hydrogen.
Physics & Space Science
Of the six basic properties of life, biologists consider the most fundamental to be
A) response to environment B) reproduction C) order D) evolutionary adaptation
Physics & Space Science
High mass stars are typically found on the ________ of the main sequence
A) upper right B) lower left C) upper left D) lower right E) center
Physics & Space Science