Work = (force) x (distance)
Work = (22 N) x (16 m)
<em>Work = 352 Joules</em>
They'll still be magnets, but they'll never be able to touch each other where they were cut.
I hope this helps you! :-)
The power applied to move the box anywhere is
(20 n) x (distance moved) / (time to move the distance) .
IF the toss was straight upward, then the kinetic energy it got
from the toss is the gravitational potential energy it has at the top,
where it stops rising and starts falling.
Potential energy = (mass) x (gravity) x (height)
= (0.15 kg) x (9.8 m/s²) x (20 m)
= 29.4 kg-m²/s² = 29.4 joules .
