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weeeeeb [17]
3 years ago
13

Q.20

Physics
1 answer:
Svetllana [295]3 years ago
6 0

Answer:

what are you talking about

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What mass of a material with density rho is required to make a hollow spherical shell having inner radius r1 and outer radius r2
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m=\rho\times \frac{4}{3} \times \pi \times(r_2^3-r_1^3  )

Explanation:

  • We have to make a hollow sphere of inner  radius r_1 and outer radius r_2.

Then the mass of the material required to make such a sphere would be calculated as:

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<u>Then the mass of the material used is:</u>

m=\rho.V

m=\rho\times \frac{4}{3} \times \pi \times(r_2^3-r_1^3  )

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