Someone Please help me Im gonna fail. After Losing control, a hot air balloon is a drift on the wind and travels north for 3.2 km. The Wind shifts and blows the balloon south for 12.7 km. After one more shift, it blows North for another 8.8 Km.
What is the magnitude of the resultant displacement of the hot air balloon. PLEASE HELP ME

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

Which sound characteristic is not affected by the relative motion of an object

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.