A person walks from a Om position to a position of +10m and then returns to a position of +5m. The total trip takes 5seconds. What's the person's velocity?
(answers are in m/s) *

Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.

What happens to light waves from a star as the star moves away from earth?

Will you chech and finish these for me, because i am stumped with them.