The horizontal rows of the periodic table are called ______________
Fill in the blank(s) with correct word
periods
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If there were lots of baryons present during the early moments of the big bang, they would have:
A) collided with deuterium to make helium. B) collided with lithium to make helium. C) collided with and destroyed deuterium. D) collided with each other to from deuterium.
Components: If a vector pointing upward has a positive magnitude, a vector pointing downward has a negative magnitude.
A. True B. False
Two guitar strings are under the same tension and have the same length. If their fundamental frequencies are in a ratio of 3:2, what is the ratio of their masses?
A. 3/2 B. 2/3 C. 9/4 D. 4/9
Compared to Saturn, Jupiter is about
A) 100 times more massive. B) twice the diameter, but less dense. C) half as dense, but the same mass since it is larger. D) three times more massive and denser. E) half as massive and denser.