Question

plz Solve it .............«»»»»​

Answer 1

ANSWER

788g

Step-by-step explanation:

Solution: For copper wire:

Diameter = 3 mm = 0.3 cm

For cylinder;

length h = 12 cm,

d = 10 cm

Density of copper = 8.88 gm cm3

Curved surface area of cylinder can be calculated as follows:

2πrh

=π*10*12

=120π cm^2

Length of wire can be calculated as follows:

length=area/width

120π/0.3=400π

=1256cm

Now, volume of wire can be calculated as follows:

V=πr^2h

=3.14*0.15^2*1256

=88.7364cm^3

Mass can be calculated as follows: Mass = Density × Volume = 8.88 × 88.7364 = 788 g (approx)

Answer 2

Answer:

hiiiii

Step-by-step explanation:

[Pt. jawaharlal nehru]

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