Determine the momentum of a 6 kg object moving at 5 m. s-1 to the right

What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects