Question

B.A certain piece of copper wire is determined to have a mass of 2.00 g per meter.

Answer 1

Answer:

14cm

Explanation:

Mass per gram of the piece of wire;

         2g of the wire is found in 1m

 Since

       100cm  = 1m;

 

So;

       100cm of the wire contains 2g of the wire

To provide 0.28g

 Since;

        2g of wire is made up of 100cm

      0.28g of wire will be contained in $\frac{100 x 0.28}{2}$   = 14cm

14cm of the wire will contain 0.28g