Answer:
you change the direction of the magnetic field.
Explanation:
Because the magnetic field created by the electric current in the wire is changing directions around the wire, it will repel both poles of the magnet by bending away from the wire.
All it does is lets him pull in a more convenient direction to raise the load. It has no effect on the required force.
Answer:
The answer is D. density.
It is salt water because they are two things combined together.
Work = (force) x (distance) =
(200 N) x (3.5 m) = <em>700 joules</em>