An object falls from rest on a high tower and takes 5.0 s to hit the ground. calculate the object's position from
the top of the tower at 1.0 s intervals. make a position-time graph for the object's motion. in your response,
show what you are given, the equation that you used, any algebra required, a table of data, and your graph.
g = 9.8 m/s2

In a closed system, the total energy prior to an energy transformation is the total energy after. a. equal to b. unrelated to c. greater than d. less than

If a simple machine reduces the strength of a force, what must be increased?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.