The half-life of strontium-90 is 28 years. Suppose we have a 44 mg sample. (a) Find a function that models the mass m(t) remaining after t years. m(t) = (b) How much of the sample will remain after 60 years? m (60) = mg. (c) How long will it take the sample to decay to a mass of 11 mg? Your answer is years. Note: if you round off values in earlier parts of this problem, the answers might be marked as correct. But, the error from rounding off can b magnified in later parts of the problem and lead to answers which are not close enough to being marked correct. It is a good idea to not use rounded values when computing later parts of a problem.

Q: A population of bacteria growing exponentially can be modeled as P(t)= Pue, where t is the time in…

A:

Q: The half-life of a radioactive substance is 8.93 years. If 6 grams of the substance is present now,…

A: In this question we are given with the equation and we are also given with the half life time with…

Q: The population of Nevada was 3.0 million in 2018 and 2.7 million in 2010. Assuming an exponential…

A:

Q: he change to a villages population over time can be represented using an exponential decay function.…

A: We need to determine the value of P0, r using the data provided. Then we need to calculate the value…

Q: A population grows according to an exponential growth model. The initial population is P0=18P0=18,…

A: Given P0=18 r=0.3

Q: The half life of substance A is 1.8 years, and substance B decays at a rate of 30% each decade. The…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Find the half-life of a radioactive element, which decays according to the function A(t) = Age…

A: Give decay of a radioactive elementwhere t is the time in years.

Q: A population grows according to an exponential growth model. The initial population is Po = 15, and…

A:

Q: A. Show the value of P0 is 12,000 and hence, state the equation for P(t)  B. Show that the value of…

A: This is a problem of dynamic system.