7) Earth experiences a centripetal force due to (@ 1.5pts extra credit) the sun's gravitational force on the moon. O the sun's gravitational force on earth. O earh's gravitational force on the moon. electromagnetic forces. 8) A satellite ( 1.5pts extra credit) must go around earth. experiences a centripetal force. must go around the sun. O is a dish 9) The speed needed to leave earth's gravity is about (@ 1.5pts extra credit) the terminal speed. 11.2m/sec 11.2km/sec 9.8m/sec 10) acceleration is definitely constant if (@ 1.5pts extra credit) speed is constant. direction of motion does not change. speed and direction of motion do not change. all of the above