A glass ball with a shiny coating acts like a mirror. The ball has a diameter of 10cm. You hold the ball away from you at arm’s length and look at your reflection. If the nose on your face is 1.1 meters from the mirror surface, calculate the image distance and the magnification

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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.

The ability to make things happen is also called a. heat b. force c. matter d. energy