1.

Using the unit conversion factors, express (i) 1.54 mm s^(-1) in pm mus^(-1) (ii) 2.66 g cm^(-3) in mum^(-3)

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Solution :(i) `(1.54mm)/(1s)xx(1cm)/(10MM)xx(1m)/(100CM)xx("1 pm")/(10^(-12)m)xx(10^(-6)s)/(1mus)=1.54xx10^(3)" pm"mus^(-1)`
(ii) `(2.66g)/(1cm^(3))xx(1mug)/(10^(-6)g)xx(100cm)/(1m)xx(100cm)/(1m)xx(100cm)/(1m)xx(10^(-6)m)/(1mum)xx(10^(-6)m)/(1mum)xx(10^(-6)m)/(1mum)=2.66xx10^(-6)MUG mum^(-3).`


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