Sodium-24 is a radioactive isotope that is used in diagnosing circulatory disease. It decays into stable isotopes of sodium at a rate of 4.73% per hour. a. Technicians inject a quantity of sodium-24 into a patient's bloodstream. Write a formula for the amount of sodium-24 present in the bloodstream as a function of time. Use A for the initial amount of sodium-24. S(t)= ________?_________ b. How long will it take for 75% of the isotope to decay? Answer exactly or round to 3 decimal places. ______?_______ hours
Sodium-24 is a radioactive isotope that is used in diagnosing circulatory disease. It decays into stable isotopes of sodium at a rate of 4.73% per hour. a. Technicians inject a quantity of sodium-24 into a patient's bloodstream. Write a formula for the amount of sodium-24 present in the bloodstream as a function of time. Use A for the initial amount of sodium-24. S(t)= ________?_________ b. How long will it take for 75% of the isotope to decay? Answer exactly or round to 3 decimal places. ______?_______ hours
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Sodium-24 is a radioactive isotope that is used in diagnosing circulatory disease. It decays into stable isotopes of sodium at a rate of 4.73% per hour.
a. Technicians inject a quantity of sodium-24 into a patient's bloodstream. Write a formula for the amount of sodium-24 present in the bloodstream as a function of time. Use A for the initial amount of sodium-24.
S(t)= ________?_________
b. How long will it take for 75% of the isotope to decay? Answer exactly or round to 3 decimal places.
______?_______ hours
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