Strontium-90 is a radioactive material that decays according to the function A(t) = Aŋ e -0.0244t where An is thei time t (in years). Assume that a scientist has a sample of 800 grams of strontium-90. (a) What is the decay rate of strontium-90? (b) How much strontium-90 is left after 30 years? (c) When will only 200 grams of strontium-90 be left? (d) What is the half-life of strontium-90? ..... %. (a) The decay rate of strontium-90 is (Type an integer or a decimal. Include the negative sign for the decay rate.) (b) Approximately grams of strontium-90 is left after 30 years. (Do not round until the final answer. Then round to the nearest whole number as needed.) (c) Only 200 grams of strontium-90 will be left in about years. (Do not round until the final answer. Then round to the nearest tenth as needed.)

Q: Strontium-90 is a radioactive material that decays according to the function A(t) = Age-0.0244t,…

A:

Q: A colony of bacteria is growing exponentially with growth constant k = 0.25. (a) Determine the rate…

A: Given bacteria population rate and bacteria population functions are

Q: A radioactive element decays according to the function Q = Qoert, where Q is the amount of the…

A:

Q: A radioactive isotope is unstable and will decay by emitting a particle, transforming into another…

A: We have to use relation between decay rate and amount present at that time

Q: An initial population of 80 fish is introduced into a leke. This fish population grows according to…

A:

Q: A radioactive substance decays at a continuous rate of 14% per year, and 50 mg of the substance is…

A: Solution:a Given that a radioactive substance decays at a continuous rate      of 14% per year and…

Q: A certain radioactive material is known to decay at a rate proportional to the amount present. If…

A: Percentage : Percentage of the item is 100th part of the number.  It is denoted by x% or written as…

Q: 6. Consider a bacteria culture growing exponentially, with time measured in hours. Suppose P (0) 100…

A: