Simon is looking at a can at the angle shown in the diagram below There is a coin at the bottom of the can.
Suggest why Simon can only see the coin if the can is filled with water.

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?

Is a copper wire a conductor or insulator?

How much work would it take to move a coulomb charge across a 4 volt potential difference?