jake climbs up the stairs with some books, his weight is 300N and the books have his weight of 100N. He climbs a height of 30m. How much work is done by her.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.