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if a hydrometer of mass 20g and volume of 30cm³ has a graduated stem of...

if a hydrometer of mass 20g and volume of 30cm³ has a graduated stem of 1cm² and floats in water, the exposed length of the system is?
In Nigerian Defence Academy
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Asked by Diego on 24th July, 2021
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts