The gold bar has a trapezium cross sectional area gold has a density of 19.3 grams per cm^3 work out the mass of the gold bar
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Mass of the gold bar = 13.896 kg
Step-by-step explanation:
see attached figure :
Volume of gold Bar = ( Trapezium cross sectional area ) * Length
= ((1/2)(12 + 6) * 5) * 16
= 45 * 16
= 720 cm³
Density = 19.3 g/cm³
Density = Mass /Volume
=> Mass = Density * Volume
=> Mass = 19.3 * 720
=> Mass = 13,896 g
=> Mass = 13.896 kg
Mass of the gold bar = 13.896 kg
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