Explanation:
30 minutes is 1800 seconds.
Power = energy / time
P = 1100 J / 1800 s
P = 0.611 W
Converting the energy from J to kWh:
1100 J × (1 Ws / 1 J) × (1 kW / 1000 W) × (1 h / 3600 s) = 3.06×10⁻⁴ kWh
To find resistance, you need to be given either the voltage or the current.
A device that does work with one movement and changes the size or direction of a force is a simple machine.
Answer:
Because china was in war, and her parents didn't have enough money for to go to school.
The metric unit to measure work which equals one newton meter is called One Joule.
That's the 'electrostatic' force.
