A rubber ball with a speed of 5.0m/s collided head-on elastically with an identical ball at rest. what is the speed of the initially stopped ball after the collision?

wavelength variability is the right one

what type of charge does it have? negative

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

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

c) both a and b.

it was given as a lesson and guide for prayer.