e homo- studied: swers to: circum- e circle? a trian- lines are line (the Mach's ught ex- vers who er. New- tes away a force, Nout (8.8) (More challenging.) (a) Imagine a point source with the mass of Jupiter, 1.9 x 1027 kg, at a dis- tance of 4.2 x 108 meters from a spherical object that has a diameter of 3,640 meters and a mass of 8.9 x 1022 kg. Consider a location on the surface of the sphere that is closest to the point mass. Now consider the location on the sphere that is exactly opposite the first location. (Refer to Figure 8.9(a) for a diagram of the situation.) What is the differ- ence in the gravitational force between these two locations? How does this tidal force compare, as a percentage, with the gravitational force between the sphere (more precisely, the center of the sphere) and the point mass? You may use strictly Newto- nian gravity for your answers. DO tter c rep.c EX Post 4 111