4. John drives his car 5 miles north to visit his friend, and then drives 7 miles east to go to the store, What is John's displacement? * 1

Which component of the earth’s atmosphere is decreased due to photosynthesis?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

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.