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The resistivity for copper is 1.7E-8 ohm meters

For part a:

The equation is R=ρ(L/A) and A=∏r

^{2}.

I solved for Area and got 3.33E-6 m

^{2}.

Then I did R=1.7E-8(11.5/3.33E-6)

R=.0587 ohms.

However, when I plug this into the system it says it's wrong. What did I do incorrectly? I double-checked my multiplication and everything.