A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta-minus decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u? (1 u = 931.5 MeV/c2)
A) 0.0156 MeV
B) 0.156 MeV
C) 1.56 MeV
D) 15.6 MeV
B
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A. 21
B. 5.5
C. 11
D. 25
E. 30
A lithium-sodium
These two skaters have just pushed off against one another. One skater has twice the mass as the other. Which one will experience the greater velocity?
A. The heavier skater
B. The lighter skater
C. Neither, they both have the same
In M82, observations indicate that there are several bright sources close to the center of the galaxy. These might be
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