A substance of mass 0.4kg having a density 2700kg/m3 occupies an area 0.02m2. Determine the thickness of the substance.

A substance of mass 0.4kg having a density 2700kg/m3 occupies an area 0.02m2. Determine the thickness of the substance.

(A)0.074m
(B)0.74m
(C)7.4m
(D)0.0074m

Ans: 0.0074m

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