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Author Question: At the moment of a total eclipse, the moon lies along a line from the Earth to the sun. If your ... (Read 96 times)

Destiiny22

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on: Jul 28, 2018
At the moment of a total eclipse, the moon lies along a line from the Earth to the sun. If your normal weight is 600 N, how much is your weight decreased by the combined pull of the sun and moon? MSUN = 2.0  1030 kg, rS-E = 1.5  108 km MMOON = 7.4  1022 kg, rM-E = 3.8  105 km

Question 2

Isaac Newton was able to estimate a value for G, the universal gravitational constant, from the following data: the radius of the Earth is about 6 400 km, the average density of rocks is about 5.50 g/cm3, and g = 9.80 m/s2 near the surface of the Earth. What value did Newton obtain for G?


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katara

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Reply #1 on: Jul 28, 2018
Answer to Question 1

0.37 N

Answer to Question 2

6.65  10-11 Nm2/kg2


Destiiny22

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Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

skipfourms123

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Reply 3 on: Yesterday
Excellent

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