1 joule = 1 watt-second work
1 watt = 1 joule per second
1 kilowatt = 1000 joules per second
1 kilowatt per nano second = 1000 joules (work) per second per nano second - not sure what unit that is maybe her attempt at instantaneous power.
For a bullet to leave a long rife we are talking about 3 milliseconds
0.001s=1ms
0.000000001s=1ns
ok unit fagging here but it seems like a hollywood actress who was in a space movie thinking they are smart…like Tom Hanks does. He likes terms like nano second.