Mrs. Evans, a 52 kg hiker, climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0 hr (change to seconds!) hike, her vertical height increases 540m. Determine the power generated to increase the gravitational potential energy of the system.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =