Saturday

April 19, 2014

April 19, 2014

Posted by **christine** on Sunday, May 2, 2010 at 11:40pm.

- math -
**Reiny**, Monday, May 3, 2010 at 12:46amso IR = 14

so when I = 40

R = 14/40 = 7/20

d(I)/dt(R) + d(R)/dt(I) = 0

-9(7/20) + d(R)/dt (40) = 0

d(R)/dt = 63/20 /40

= 63/800 resistance units/s

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