1040 miles per hour (1600 km/hr). Choose the Earth movement that best relates to the description. A. Earth orbits Sun
B. Earth rotates once every 24 hours
C. Earth orbits with solar system the Milky Way Galaxy
D. Earth moves with Milky Way Galaxy through galactic space

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

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.