What do you call a group of cats?

that would be b i just took the test : )

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

spectral lines lyman is one set

f is prop to m1xm2 double m1 double force