Schiff G asked: Assuming the solar panels are not connected to the power grid, and assuming an average number of miles traveled per year (say 12,000), and without discussing battery, motor, range or other issues – but assuming it’s 100% electric (not a hybrid), and assuming plenty of sun location, how many watts of installed [...]

Ste P asked: I need to know how many litres per minute a jet boat pump is outputting. I know that the outlet diameter is 28mm and the thrust is 5kg. Power source is 2×7.2V 3300mAh batteries.

Bibis asked: Step by step instructions
If you own a book called Electric Gadgets and Gizmos, could you please write down the intructions on how to build the electric car in the book?
Small as in one foot, like a toy car.

Satch_IP asked: How much electricity does an electric car require each day to charge its batteries? Hence how much extra electricity capacity must be added nation wide to switch to electric transportation?

Mike asked: I am doing a project on the Tesla Roadster and I need help on how to find the heat transfer in the electric car. How can I calculate the heat transfer in the Tesla Roadster?

asdasd asked: Okay, so I have to make an electric car using a 3V motor and 2 AA batteries. I have everything connected, and when I have the car not touching the ground, the wheels spin, but when it hits the floor, it stops spinning. How do I increase torque to make it move?