the diameter of a metallic solid sphere is 12 cm it is melted and drawn into a wire having diameter of cross section 0.2 cm find the length of the wire
Answers
Answered by
1
Answer:
We have
Diameter of metallic sphere =6cm
Radius of metallic sphere =3cm
Also we have
Diameter of cross-section of cylindrical wire=0.2cm
∴ Radius of cross-section fo cylindrical wire=0.1cm
Let the length of the wire be h cm
Since the metallic sphere is converted into a cylindrical shaped wire of length h cm
Volume of the metal used in wire= Volume of the sphere
⇒π×r
2
×h=
3
4
×π×r
3
⇒π×(0.1)
2
×h=
3
4
×π×3
3
⇒π×(
10
1
)
2
×h=
3
4
×π×27⇒π×
100
1
×h=36π
⇒h=
π
36π×100
cm=3600cm=36metres
∴ Length of the wire=3600cm
PLEASE MARK ME AS BRAINLIEST
explanation-
you just need to know to formula..then apply the values as all the values are already given in Question..calculate it and you will get you answer
Answered by
3
Answer:
see the photo and understand if u can
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