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A regulation baseball has mass 145 g and diameter 22.86 cm. Will this ball float
or sink in water?
Vsphere =


  • Physics -

    1. Get the volume of the sphere (baseball). You re given the diameter, and you can get the radius by dividing this by 2. You are also given the formula:
    V,sphere = 4/3 * π * r^3
    Just substitute the value of radius to get V.

    2. Divide the given mass by volume to get density of sphere:
    d = m/V

    3. Compare the density of sphere to density of water (which is 1 g/cm^3). If density of sphere is greater than density of water, it will sink. Otherwise, it'll float.

    hope this helps :3

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