answersLogoWhite

0

For decay rates/decay factors in functions:

The decay rate is the actual amount you are substituting into an equation. For example, a common exponential function such as "y=a(b)^x" would show exponential decay if it were written as "y=i(1-r)^t".

"i" represents the initial amount, such as in the previous example, would be $100. "(1-r)" is the decay factor, whereas the "r" is your decay rate. The decay factor is derived from 1-r because a function would only be considered decaying if the growth/decay factor is less than 1. Another way of looking at this principal is if we were to say a car we bought lost 8% of its value every year. Then it would only be retaining 92% of it's initial value. "t" is your time unit, or the number of times the function is applied.

Example:

A medical patient is given 400 mg of antibiotics. Say that 10% of the medicine given to a patient is eliminated by the patient's body every 2 hours. How much medicine will remain in the patient's blood stream in 4 hours?

Sample equation: y=i(1-r)^t --> "i" in this case would be 400, or the 400 mg given to the patient on. (1-r) would be 1-10% or 1-0.10 -- the amount of antibiotic that will remain in the patients body. "t" in this case would be 2, because the eliminated amounts are only calculated in 2 hour increments, with 4 hours total in the problem.

Your equation: y=400(1-0.10)^2

y=400(0.90)^2

y=400(0.81)

y=324 mg of antibiotics left in the blood stream

User Avatar

Wiki User

9y ago

Still curious? Ask our experts.

Chat with our AI personalities

LaoLao
The path is yours to walk; I am only here to hold up a mirror.
Chat with Lao
TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
JudyJudy
Simplicity is my specialty.
Chat with Judy
More answers

The decay rate refers to the percentage decrease in a quantity over a given time period. The decay factor, on the other hand, represents the multiple by which a quantity decreases over time, often expressed as a fraction or decimal less than 1. The decay rate is calculated as the difference between 1 and the decay factor, providing complementary perspectives on the same concept of decreasing values.

User Avatar

AnswerBot

10mo ago
User Avatar

Add your answer:

Earn +20 pts
Q: Decay rate vs decay factor
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

What is the difference between Chemical kinetics vs Chemical decay?

Chemical kinetics studies the speed at which chemical reactions occur, including factors influencing reaction rates. Chemical decay specifically refers to the decrease in concentration of a substance over time due to chemical reactions like decomposition or radioactivity. Chemical decay is a type of chemical kinetics involving the study of reaction rate changes as a function of time.


What is a nuclear decay graph?

A nuclear decay graph shows the quantity of a radioactive substance remaining over time as it undergoes decay. The graph typically displays a decreasing exponential curve reflecting the steady decrease in the amount of the radioactive substance as it decays into a more stable form. It helps in understanding the decay process and calculating the half-life of the substance.


What is the method called which dates organic material such as bones and wood?

Radiocarbon dating is the method used to date organic material such as bones and wood by determining the amount of carbon-14 present. This method relies on the fact that carbon-14 decays at a known rate, allowing scientists to estimate the age of the material based on the remaining carbon-14.


Is acceleration the slope of velocity vs time graph?

No, acceleration is the rate of change of velocity with respect to time. It is the derivative of the velocity function, not the slope of the velocity vs. time graph. The slope of the velocity vs. time graph represents the rate of change of velocity, not acceleration.


What are the units of rate?

any rate is a comparison of two changing quantities, usually one of them is time. distance vs time is a rate called speed wit units of meters per second, or miles per hour, or many others