| Homework solutions |
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| • | Question
4 (1 point) What is the circular velocity of |
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| Mercury?
You will need values from Appendix A of the |
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| textbook.
You might also find the example in By the |
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| Numbers
4-1. |
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| a.
About 5 km/s. |
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| • | b.
About 25 km/s. |
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| • | c. About 50 km/s. |
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| • | d.
About 75 km/s. |
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| • | e.About
100 km/s. |
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| • | Start From Vc = (GM/R)0.5 |
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| • | G = 6.67x10-11 m3/kg s2, M=2x1030
kg, R=5.8x107 km |
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