Are the measuring units of Force x time (Fxt) the same as the measuring units of momentum change (mvf - mvi)? Demonstrate it.

Yes

Explanation:

The measuring units of force x time is the same as that of momentum change.

The product force x time is impulse and momentum change is mass x velocity.

The unit of force  = N or kgm/s²  

                  Time  = s

                   Velocity  = m/s

Force x time:

        Unit  = kgm/s² x s  = kgm/s

Mass x (mvf  - mvi ) =  kg xm/s = kgm/s

So, we see that the units are the same

i think they are all correct

explanation:

they seem good

uranium fissions/breaks up giving out energy and neutrons