Alarge uniform density cube of mass m and side l is floating upright in a pond exactly half submerged. a small steel ball of mass m/2 is dropped directly over its center from the height h. assume that the head-on collision is perfectly elastic and that the steel ball rebounces vertically, 1. find the height the steel ball rebounds. 2. find the depth to which the large cube descends. express your answers in terms of m, l, g, and h. neglect all forms of dissipation and assume that the water surface remains level at all times

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.