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Oxana [17]
3 years ago
5

10. Find the mass density of a ball with 22.0 g and a radius of 0.875 cm.

Physics
1 answer:
Ede4ka [16]3 years ago
7 0

Answer:

Mass (m) = 22.0 g

Radius (r) = 0.875 cm

Density (d) = ?

First find ( volume) ;

v =  \frac{4}{3} \pi \:  {r}^{3}  \\  \\ v =  \frac{4}{3}  \times 3.14 \times ( {0.875)}^{3}  \\  \\ v =  \frac{4}{3}   \times 3.14 \times 0.66992187  \:  {cm}^{3} \\  \\ v = 2.8 \:  {cm}^{3}

Density =  \frac{mass}{volume}  \\  \\ d =  \frac{m}{v}  \\  \\ d =  \frac{22}{2.8}  \\  \\ d = 7.857 \:  \frac{g}{ {cm}^{3} }

I hope I helped you^_^

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<h3>What is tension?</h3>

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<em>let θ = 66⁰ (this value should be given in the question)</em>

<em />

T =  (M + 2m)g tanθ

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