(a) 8 days (from the graph it takes 8 days for mass to reduce by half i.e. from 10g to 5g).
(b) $\frac{N}{10}$ = $(1/2)^{\frac{32}{8}}$ = $\frac{N}{10} \; = \frac{1}{2}^4$
$\frac{N}{10} \; = \frac{1}{16}$ = 0.625g
johnmulu answered the question on June 7, 2017 at 11:26
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