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The force of gravity varies inversely with the square of the distance between given planet and the sun because
\[F_g=\frac{GMm}{r^2}\]
 one year ago
 one year ago
The force of gravity varies inversely with the square of the distance between given planet and the sun because \[F_g=\frac{GMm}{r^2}\]
 one year ago
 one year ago

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JenniferSmart1Best ResponseYou've already chosen the best response.0
what is the "varies" symbol again? \[F\;\;\; \frac 1{r^2}\]
 one year ago

Jemurray3Best ResponseYou've already chosen the best response.1
\[ \propto \] \propto which is short for "proportional to"
 one year ago

JenniferSmart1Best ResponseYou've already chosen the best response.0
"varies inversely" means proportional to \(\frac 1 r\) correct? \(\frac 1 {r^2}\)
 one year ago

Jemurray3Best ResponseYou've already chosen the best response.1
if A varies inversely with B, you say \[ A \propto \frac{1}{B} \] here, you're saying "The force (A) is varies inversely with the square of the distance (B)". So A is the force, and B is r^2. \[ F \propto \frac{1}{r^2} \]
 one year ago
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