What is the density of object whose mass is 45 grams and its dimension is 2 cm x 3 cm x 1 cm? *
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Answer:
we know that,
density=mass / volume
we have,
mass = 45 g=45×10^-3 kg
volume= l×b×h
=1×10^-2×2×10^-2×3×10^-2 m^3
=6×10^-6 m^3
putting value of mass and volume,
therefore, density=45×10^-3/6×10^-6 kg/m^3
=7.5×10^3 kg/m^3
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