In Einsteins's relatvistic equation, E = mc2:
Select one:
a. c represents the velocity of ultrasound
b. If the mass is measured in kg and the velocity in m/s, energy will be measured in J
c. If mass is measured in g, the velocity must be measured in m/s
d. If the velocity is 3 x 108 m/s, mass should be g
e. If the velocity is given as 186,000 mi/s, the energy will be N
