Recent content by ninanoorable

mmm.i've just found what was wrong after using all my attempts...it's silly ..the site wanted the answer in 2 significant figures...

thank you..but it didn't work either..i just donno what's wrong

Homework Statement A 10.0 length of wire consists of 5.0 of copper followed by 5.0 of aluminum, both of diameter 1.3 . A voltage difference of 87 is placed across the composite wire.What is the total resistance (sum) of the two wires? Homework Equations R=pL/A The Attempt at a...