Mathematics, 29.04.2021 14:00 JSTAX01
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The nuclei of radioactive (unstable) chemical elements decay (disintegrate) in a way that can be
modelled by exponential functions.
A radioactive element decays according to the equation N= Ae' where N is the number of
radioactive nuclei present r hours after the experiment begins, and A is a constant
a) If 350 radioactive nuclei are present in the element at the beginning of the experiment find the
number of radioactive nuclei, N. present after 10 hours.
b) Draw a graph of N against r.
c) Find how long it would take before 50 radioactive nuclei are left
d) Would there ever be no radioactive nuclei left? Give reasons for your answer
Answers: 2
Mathematics, 21.06.2019 23:30, saintsfan2004
Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section
Answers: 1
Mathematics, 22.06.2019 01:40, ptanner706
Ahigh-altitude spherical weather balloon expands as it rises, due to the drop in atmospheric pressure. suppose that the radius r increases at the rate of 0.02 inches per second, and that r = 36 inches at time t = 0. determine the equation that models the volume v of the balloon at time t, and find the volume when t = 360 seconds. v(t) = 4π(0.02t)2; 651.44 in3 v(t) = 4π(36 + 0.02t)2; 1,694,397.14 in3 v(t) = four pi times the product of zero point zero two and t to the third power divided by three.; 4,690.37 in3 v(t) = four pi times the quantity of thirty six plus zero point zero two t to the third power divided by three.; 337,706.83 in3
Answers: 1
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The nuclei of radioactive (unstable) chemical elements decay (disintegrate) in a way that c...
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