A rock is thrown off a cliff with a speed of 1.7 m/s downward. How far will it fall after 4.2 seconds have elapsed.

What are the phases shown in a and d called?

What is work? how much work is done to move an object 0 meters?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.