Answer:
magnet coppers wire and piece of metals
1. Battery
2. Copper wire
3. Nail or piece of metal (zinc, iron, or steel).
Power = (work or energy) / (time)
100 W = (energy) / (20 sec)
Energy = 2,000 watt-sec
<em>Energy = 2,000 J</em>
2 m/s
Explanation:
speed = distance/time
s = 100/50 = 2
