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23 Nov 2019
Q#1 Initially there are 6*10upper 9 radioactiveofelement w (decay constant 0.173/day) in a sample. Asanucleus of w decays, it converts 2.67*10 upper -28 kg of itsmassto energy and release the energy. How much time (in days)isrequired for the sample to release a total of 7.2*10 uper-4j? (a) 0 (b) 0.000290 (c)0.00571 (d)0.00943 (e)0.0137 (a,b)0.0290 (a,c)0.0571 (a,d)0.290 (a,e)0.571 (b,c)3.29
Q#1
Initially there are 6*10upper 9 radioactiveofelement w (decay constant 0.173/day) in a sample. Asanucleus of w decays, it converts 2.67*10 upper -28 kg of itsmassto energy and release the energy. How much time (in days)isrequired for the sample to release a total of 7.2*10 uper-4j?
(a) 0
(b) 0.000290
(c)0.00571
(d)0.00943
(e)0.0137
(a,b)0.0290
(a,c)0.0571
(a,d)0.290
(a,e)0.571
(b,c)3.29
Tod ThielLv2
20 Jun 2019
