URGENT HELP PLS PLS PLS A solid sphere of radius 3 cm is of mass 9 kg. Find the mass of a sphere of the same material of radius 5 cm

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URGENT HELP PLS PLS PLS
A solid sphere of radius 3 cm is of mass 9 kg. Find the mass of a sphere of the same material of radius 5 cm

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Hồng Cúc 5 months 2021-08-18T16:27:56+00:00 1 Answers 0 views 0

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    2021-08-18T16:29:21+00:00

    Answer:

    15 kg

    Step-by-step explanation:

    Radius of a solid sphere : mass of a solid sphere

    3 cm : 9 kg

    Find the mass of a sphere of the same material of radius 5 cm

    Radius of a solid sphere : mass of a solid sphere

    5 cm : x kg

    Equate both ratios to find x

    3 cm : 9 kg = 5 cm : x kg

    3/9 = 5/x

    3 * x = 9 * 5

    3x = 45

    x = 45/3

    x = 15 kg

    The mass of a sphere of the same material of radius 5 cm is 15 kg

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