True or false: A reindeer eating hay travels 10 feet North, 5 feet East, then 10 feet South. The reindeer's displacement is the square root of 25

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

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