What creative thoughts did rømer have to explain his measurements

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Which system of units is used by only a small number of countries in the world, including the u.s.