proportions question

[dreams]

ok I was doing a problem in EK and the equation given is ?=(F-mg)/(2L), where ?(water)=.073 mN/m. If L is doubled and everything else is constant then does ? go down by a factor of 2 or 4? I thought it was 4 but the book is saying 2.

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[dreams]

ok I was doing a problem in EK and the equation given is ?=(F-mg)/(2L), where ?(water)=.073 mN/m. If L is doubled and everything else is constant then does ? go down by a factor of 2 or 4? I thought it was 4 but the book is saying 2.

figured it out nevermind

 

[iA-MD2013]

figured it out nevermind

it's so nice when that happens!