Car travel at the speed of 20 km/hr for 2 hour and 60 km/hr for next 2 hour find average speed

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?

Which planet do you think would be easiest for humans to colonize some day?

The ability to make things happen is also called a. heat b. force c. matter d. energy