I want to calculate the delta V needed to move objects around in a 1-d gravitational field. The relevant equations as far as I can see are the Tsiolkovsky equation,(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\Delta V = v_{ex} \ln\left(\frac{m_0}{m_1}\right)[/tex]

and the equation for calculating escape velocity.

[tex]v_e = \sqrt{\frac{2GM}{r}}[/tex]

Now I'm guessing that if I want to find the delta v to get from r to R I would use

[tex]v_e = \sqrt{2GM}\left(\frac 1R - \frac 1r\right)[/tex]

is that correct?

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# Delta V

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