How much volume does an object have if it measures 13 cm long, 8 cm wide, and 5 cm high?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation

Where do magnetic lines of force enter earth?