How much energy is stored in a room 3.0 m by 4.0 m by 2.4 m due to the earth's magnetic field with a strength of 5.0 10-5 T? (0 = 4 10-7 T m/A)
A) 29 mJ B) 57 mJ C) 10 mJ D) 100 mJ E) 570 mJ
Question 2
The Q value for a particular reaction is -2.4 MeV, and the reaction's threshold energy is 9.60 MeV. What is the ratio of the mass of the incident particle to the mass of the stationary target nucleus?
A)
-0.75
B)
0.25
C)
3
D)
4
E)
5