Answer to Question #139013 in Field Theory for Max

Question #139013
Suppose we have made a model of the Solar system scaled down in the ratio but of materials of the same mean density as the actual materials of the planets and the Sun. How will the orbital periods of revolution of planetary models change in this case?
1
Expert's answer
2020-10-19T13:25:15-0400

Solution

Time period can be given as

T=2πR32γmsT=\frac{2\pi R^{\frac{3}{2}}}{\sqrt{\gamma m_s}}

TR32msT\propto \frac{R^\frac{3}{2}}{\sqrt{m_s}}

If scaled down ratio is η\eta then then R32R^\frac{3}{2} Will be scaled by η32\eta^\frac{3}{2} And ms\sqrt{m_s} wil be scaled down as same ratio as the R32R^\frac{3}{2} .

So time period will remain unchanged.

So time period will be

T=2πR32γmsT=\frac{2\pi R^{\frac{3}{2}}}{\sqrt{\gamma m_s}}





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