The density P of a spherical ball of diameter d and mass m is given...
PHYSICS
WAEC 2010
The density P of a spherical ball of diameter d and mass m is given by
- A. P = \(\frac{3m}{4 \pi d^3}\)
- B. p = 4\(\pi md^3\)
- C. p = \(\frac{6m}{\pi d^3}\)
- D. p = \(\frac{3m}{2 \pi d^3}\)
Correct Answer: C. p = \(\frac{6m}{\pi d^3}\)
Explanation
p = \(\frac{M}{V} = \frac{M}{\frac{4}{3} \pi (\frac{d}{\pi})^3}\)
= \(\frac{6m}{\pi d^3}\)
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