Acommon, though incorrect, statement is, "the moon orbits the earth." that creates an image of the moon? s orbit that looks like that shown in the figure. (figure 1) the earth's gravity pulls on the moon, causing it to orbit. however, by newton? s third law, it is known that the moon exerts a force back on the earth. therefore, the earth should move in response to the moon. thus a more accurate statement is, "the moon and the earth both orbit the center of mass of the earth-moon system." in this problem, you will calculate the location of the center of mass for the earth-moon system, and then you will calculate the center of mass of the earth-moon-sun system. the mass of the moon is 7.35? 1022kg , the mass of the earth is 6.00? 1024kg , and the mass of the sun is 2.00? 1030kg . the distance between the moon and the earth is 3.80? 105km . the distance between the earth and the sun is 1.50? 108km . part a calculate the location x_cm of the center of mass of the earth-moon system. use a coordinate system in which the center of the earth is at x=0 and the moon is located in the positive x direction.