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Oefening 27, bz. 43 - Radioactief verval
Gegeven:
m'(t)=-0.00043.m(t)
t:tijd in jaren, m: massa in gram; m(0)=260
Bepaal
a) m(t)
b) halveringstijd
c) Op welk tijdstip is nog 10 % van beginmassa aanwezig?
d) vervalsnelheid op t=10