Question

The diameter of a metallic ball is 4.2cm What is the mass of the ball, if the density of
the metal is 8.9 gram pr (m)​

Answer 1

$Given:$

$Diameter \: of \: the \: metallic \: ball = 4.2cm$

$we \: know,$

$radius = diameter/2$

$∴ r = 4.2/2 cm = 2.1cm$

$Density = Mass/volume$

$∴ Mass = Density × volume$

$volume \: of \: a \: metallic \: ball$

$\: \: \: \: \: \: \: \: \: \: \: \: \: = 4/3×π×r^3$

$\: \: \: \: \: \: \: \: \: \: \: \: \: = 4/3×2.1×2.1×2.1cm^3$

$∴ Mass = 8.99×4/3×π2.1×2.1×2.1cm^3$

$Answer \: ✈ \: 345.077 m \: [Approximately]$

Step-by-step explanation:

$@BrainlyMASTER$

Answer 2

Answer:

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