7. [14 Points] DETAI LS ; r: 9: a. lFon starl = , (a) What is the relative position vector r pointing from the planet to the star? m (b) What is the distance between the planet and the star? . lr|=|:|m (c) What is the unit vector F in the direction of r? (d) What is the magnitude of the force exerted on the planet by the star? s lFun planed = :l N (e) What is the magnitude of the force exerted on the star by the planet? N (f) What is the force (vector) exerted on the planet by the star? (Note the change in units.) 3 Fun planet = x 1020 N (Q) What is the force (vector) exerted on the star by the planet? (Note the change in units.) g Fon star : x 1020 N Additional Materials E3 eBook MY NOTES A planet of mass 3 x 1024 k is at location 5 x 1011, 75 x 1011, 0 m. A star of mass 5 x 1030 k is at location 74 x 1011, 4 x 1011, D m. It will be useful to draw a g g diagram of the situation, including the relevant vectors. Submit