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Suppose strontium90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t)=?
asked by Anonymous on January 28, 2018 
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Suppose strontium90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t)=(.98)^t (b)
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Suppose strontium90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t) = (b) Estimate the
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Suppose strontium90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t) = (b) Estimate the
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Radioactive decay is first order in the decaying isotope. For example, strontium90 contained in fallout from nuclear explosions decays to yttrium90 and a beta particle. Write the rate law for the decay of strontium90. Can you
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8. Suppose that the current oneyear rate (oneyear spot rate) and expected oneyear Tbill rates over the following three years (i.e., years 2, 3, and 4, respectively) are as follows: 1R1 = 5 percent, E(2r1) = 6 percent, E(3r1) =
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The radioactive decay of a substance is expressed by A=A^0 e^ kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find
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8. Suppose that the current oneyear rate (oneyear spot rate) and expected oneyear Tbill rates over the following three years (i.e., years 2, 3, and 4, respectively) are as follows: 1R1 = 5 percent, E(2r1) = 6 percent, E(3r1) =
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The radioactive decay of a substance is expressed by A=A^0 e^ kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find
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Strontium90 decays through the emission of beta particles. It has a halflife of 29 years. How long does it take for 80% of a sample of strontium90 to decay? Show process of how you got this
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