Question

16. A metal pipe cylindrical in shape, is of diameter 2 cm and length 10 cm. It is melted and recesi
wire of diameter 2.5 mm. Find the length of the wire so obtained​

Answer 1

Step-by-step explanation:

see attached file for your answer

Answer 2

Answer:

0.156(approx)

Step-by-step explanation:

Given that,

lenght of metal pipe=10cm

diameter=2cm

radius=1cm

Volume of metal pipe=πr^2l

=3.14•1•1•10

=31.4cm squere

Now,

diameter of metal wire=2.5mm=0.25cm

radius =0.125cm

so, volume of wire =πr^2l

31.4 =3.14•0.125•0.125•l

lenght of wire =31.4/3.14•0.015625

=0.15625cm