When a skydiver is 1200 meters in the air they open the parachute. They are moving down for 400 seconds before landing. What is the skydiver's average velocity?
48 m/s down
48 m/s up 3 m/s up
3 m/s down

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.