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Calculate the density of a body of mass (10+-0.6)g and volume (4.4+-0.7) cm^(3), to the correct significant figures?

Answer»


Solution :`A=pir^(2)=22xx(10.8)^(2)//7=366.6. DeltaA//A=2Deltar//r=2xx0.2//10.8=0.037`
`DeltaA=0.037xxA=13.6` AREA of CIRCLE `=A+-DeltaA=(366.6+-13.6)m^(2)`, corrected to ONE decimal PLACE.


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