The electrons can move freely between them
They are called magnetic poles.
Answer:592 kJ
Explanation:
Given
mass of elevator m=1500 kg
Lifting height=40 m
Friction Force F=100 N
The cable has to work against gravitational force and friction Force
Increase in Potential Energy of Elevator
thus work done by gravitational force
Work done against friction force
Total Work done by the cable
Answer:
The kilometer is unit of length in the metric system equivalent to one thousand meters. 1Km is equivalent to 0.6214 miles.
Explanation: