Heather and jerry are standing on a bridge 54 m above a river. heather throws a rock straight down with a speed of 15 m/s . jerry, at exactly the same instant of time, throws a rock straight up with the same speed. ignore air resistance.

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped