A 5.5 meter long Aluminum wire has resistance of 0.40 m, = 2.82 ...

[crobinson2013]

A 5.5 meter long Aluminum wire has resistance of 0.40 m,  = 2.82  10-8   m,  = 4.29  10-3 C-1. Its conductivity is
 
  A) 233.   m.
  B) 3.55  107 -1 m-1.
  C) 2.5  103 -1 .
  D) 2.5  103   m.
  E) 2.33  107 -1 m-1.

Question 2

The moment of inertia of a solid sphere about any diameter is 2/5 MR2. What is the moment of inertia about an axis that is tangent to the surface?
 
  What will be an ideal response?

[reelove4eva]

Answer to Question 1

B

Answer to Question 2

2/5 MR2 + MR2 = 7/5 MR2

[crobinson2013]

Gracias!

[apple]

Thanks for the timely response, appreciate it