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23 Nov 2019
Q#1 Initially there are 6*10power9 radioactive ofelement w (decayconstant 0.173/day) in a sample. As anucleus of w decays, itconverts 2.67 *10power -28 kg of itsmass to energy and releases theenergy. How much time(in days) is requirede for the sample torelease a total of7.2 *10power -4 j? (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)0.570 (b,c)3.29
Q#1
Initially there are 6*10power9 radioactive ofelement w (decayconstant 0.173/day) in a sample. As anucleus of w decays, itconverts 2.67 *10power -28 kg of itsmass to energy and releases theenergy. How much time(in days) is requirede for the sample torelease a total of7.2 *10power -4 j?
(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)0.570
(b,c)3.29
Patrina SchowalterLv2
21 Oct 2019
