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13 March, 18:30

The mass of a spherical grape is 8.4 grams and its density is 2 grams per cubic centimeter.

What is the radius of the grape

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  1. 13 March, 21:30
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    Density=mass/volume and the volume of a sphere is (4πr^3) / 3 so

    2=8.4 (3) / (4πr^3)

    8πr^3=25.2

    r^3=25.2 / (8π)

    r^3=3.15/π

    r = (3.15/π) ^ (1/3) cm

    r≈1.00089

    r≈1 cm
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