IF YOU PUT A LINK I WILL REPORT YOU Two spheres with different masses, m and M, are separated by a distance d between their centers. If the gravitational field strength due to the sphere of mass M at the position of the center of the sphere with mass m is X, what is the field strength due to the sphere of mass m at the position of the center of the sphere of mass M?

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At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.