An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25.0 with the horizontal. the coefficient of kinetic friction between her skis and the snow is 0.200. she coasts down a distance of 10.4 m before coming to the edge of a cliff. without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.50 m below the edge. how fast is she going just before she lands?

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

Where do magnetic lines of force enter earth?

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.