A 8.40 g bullet has a speed of 1.33 km/s. (a) what is its kinetic energy in joules?

KE = Force (in Newtons) x distance (in meters)

To convert mass and velocity into units of force and distance we need to use the standard kinetic energy equation kE = 1/2m x v^2

= 0.00420kg * 1330^2m/s

= 7429.38 j

= 7430 j