Question

A spherical object has an outside diameter of 48.0 cm. Its outer shell is composed of aluminum and is 2.00 cm thick. The remainder is uniform plastic with a density of 800 kg/m3.
(a) Determine the object’s average density.
(b) Will this object float by itself in fresh water? Explain your reasoning.
(c) If it does float, how much of it is above the water surface? If it doesn’t float, determine the force required to keep it from sinking if it is entirely submerged.


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  • CreatedAugust 29, 2015
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