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mybingbinghk
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The half-life of a radioactive isotope is the amount of time it takes for a quantity
of radioactive material to decay to one-half of its original amount.
i) The half-life of Carbon 14 (C-14) is 5230 years. Determine the decay-rate
parameter for C − 14.
ii)The half-life of Iodine 131 (I-131) is 8 days. Determine the decay-rate param-
eter for I − 131.
dx/dt = -bx where b is a constant
i) let x(t) be the quantity of radionactuve meterial at time t in year and dx/dt be the rate of change of the quantity.
dx/dt = -bx where b is a constant
I dun no how to process after doing this assumption. Please help to give some hints on doing these questions. Many thanks!
of radioactive material to decay to one-half of its original amount.
i) The half-life of Carbon 14 (C-14) is 5230 years. Determine the decay-rate
parameter for C − 14.
ii)The half-life of Iodine 131 (I-131) is 8 days. Determine the decay-rate param-
eter for I − 131.
Homework Equations
dx/dt = -bx where b is a constant
The Attempt at a Solution
i) let x(t) be the quantity of radionactuve meterial at time t in year and dx/dt be the rate of change of the quantity.
dx/dt = -bx where b is a constant
I dun no how to process after doing this assumption. Please help to give some hints on doing these questions. Many thanks!