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Some Math To Start.
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Alexander on March 19, 2001 16:53:45 UTC |
Ok, suppose that Earth is moving (in orbital motion) with the speed v via Sun's atmosphere with the atmosphere density being D. Resistance force is F=dp/dt=m(dv/dt)+v(dm/dt), where dm is the mass of Sun's atmosphere being hit by orbiting Earth during time dt. Assuming slow spiraling (dv/dt=0), we get F=v(dm/dt)=vD(dV/dt)=vDS(dl/dt)=v2DS, where dV is volume of Sun's atmosphere being hit by Earth in dt time, S = Earth's cross-section.
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