Physics
WAEC 2005
The mass of a proton is 1.0089\(\mu\) and that of a neutron is 1.0089\(\mu\). Determine the energy evolved in stabilizing the nucleus of nitrogen of mass number 14 with 7 protons and 7 neutrons. [speed of light = 3.0 x 10
8ms
-1; 1\(\mu\) = 1.67 x 10
-27kg]
-
A.
1.710 x 10-8J
-
B.
3.131 x 10-8J
-
C.
1.476 x 10-8J
-
D.
2.332 x 10-9J
Correct Answer: Option D
Explanation
E = DMC2 = 14,1141 x 1.67 x 10-27 x 9 x 1016
= 2.332 x 10-9J
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