Algebra1

COxford wrote:The radius r in millimeters of a platinum wire L centimeters long with resistance 0.1 ohm is r=0.059L1/2. How long is a wire with radius 0.236 millimeter?


Hi coxford,
If you had labelled your question, Physics or Resistance it most likely would have been answered this morning.
People come in and look for the type of question that they are interested in answering, then they leave again.
Your title was 'Algebra', it was not of interest to someone looking for Physics questions.

Melody:

COxford wrote:The radius r in millimeters of a platinum wire L centimeters long with resistance 0.1 ohm is r=0.059L1/2. How long is a wire with radius 0.236 millimeter?


Hi coxford,
If you had labelled your question, Physics or Resistance it most likely would have been answered this morning.
People come in and look for the type of question that they are interested in answering, then they leave again.
Your title was 'Algebra', it was not of interest to someone looking for Physics questions.

I suspect this equation is r=0,059L ^1/2, so again, square both sides, rearrange to get L on its own and substitute in the given value for r.