Answer:
They are both types of energy.
Explanation:
The last 2 are true for light, and the first one is true for sound.
Hope this is right, sorry if it is not.
Cobalt
I think it is cobalt
0.112eV/atom
since
p=m/v
then
pv=pv
7.81*0.97=67.81*V
V=7.58/67.81
V= 0.112eV/atom
about 2 years I think, you might have to ask your dentist