If the energy content of fuel is 40 megajoules per liter and the efficiency of the car's engine is 20%, how many kilometers per liter does the car achieve?​

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?

Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?

First to answer will be the brainliest i need the answer asap