EARTHSC 1100 Lecture 6: Lecture 6
4 Feb 2018
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Earth is the biggest/heaviest object where we live, which is why everything on it is pulled toward its center. If the sun were to disappear, the earth would y o its orbital path in a straight direction forever. It"s been spinning for 4. 6 billion years (when the earth was created) Example about tom brady throwing a football with no gravity underneath football would travel around earth and hit him in the back of the head. [(6. 67e-11 n m2/kg2) x (70 kg) x (5. 97e24 kg)] / [(6. 4e6 m)2] = [(6. 67e-11 n m2/kg2) x (70 kg) x (6. 41e23 kg)] / [(56e9 m)2] = (9. 5434 x 10-7) n = 954 nanonewtons (nn: earth-mars = [(6. 67e-11 n m2/kg2) x (6. 41e23 kg) x (5. 97e24 kg)] / [(56e9 m)2] = (8. 139 x 1016) n: asteroid-earth = [(6. 67e-11 n m2/kg2) x (1e12 kg) x (5. 97e24 kg)] / [(28e9 m)2] = 507,907 n = 508 kn: asteroid-mars =
