The diameter of a metallic ball is 4.2 cm .If density of the metal is 8.9 g per cm square.Find the mass of ball.
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radius(r) of metallic =(4.2/2)cm=2.1cm
volume of metallic ball=4/3*pia*r cube
=
4/3*22/7*2.1*2.1*2.1
= 38.308 cm cube
density =mass/volume
mass=density *volume
=8.9*38.809
=345.3912 g
hence,the mass of the ball is 345.39g approx
hope
volume of metallic ball=4/3*pia*r cube
=
4/3*22/7*2.1*2.1*2.1
= 38.308 cm cube
density =mass/volume
mass=density *volume
=8.9*38.809
=345.3912 g
hence,the mass of the ball is 345.39g approx
hope
PavitraNadagouda111:
its correct answer
tq very much
Answered by
1
diameter = 4.2 cm
radius = 2.1 cm
volume = 4/3π(2.1)^3
Mass = volume × density
= 4/3π(2.1)^3 × 8.9
=345 g
radius = 2.1 cm
volume = 4/3π(2.1)^3
Mass = volume × density
= 4/3π(2.1)^3 × 8.9
=345 g
tq very much
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