Fg=(GMeMsun)/r^2
Fg=((6.67*10^-11)(5.98*10^24)(1.99*10^30))/(1.5*10^11)^2
Fg=3.53*10^22
Consider the earth following its nearly circular orbit (dashed curve) about the sun.(Figure 2) The earth has mass mearth=5.98×1024kg and the sun has mass msun=1.99×1030kg. They are separated, center to center, by r=93millionmiles=150millionkm.
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