why does a cup made of aluminium foil float while a crumpled sheet of same sinks in water
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A cup made of aluminium foil floats on water because it's surface area becomes large, so it displaces the same amount of water from the water body as it's weight.
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On the other hand a crumpled sheet of same sinks because making it in form of sheets decreases their surface area so they sink.
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On the other hand a crumpled sheet of same sinks because making it in form of sheets decreases their surface area so they sink.
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