Achild walks 5m east, then 3m north, then 1m east. what is the magnitude of the child's displacement? what is the direction of the child's displacement?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?

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?