A planet of mass 8 × 1024 kg is at location ‹ -3 × 1011, 6 × 1011, 0 › m. A star of mass 9 × 1030 kg is at location ‹ 7 × 1011, -6 × 1011, 0 › m. What is the force exerted on the planet by the star? (It will probably be helpful to draw a diagram, including the relevant vectors.)