Ask Question
29 November, 07:15

Modern whales appreared 5-10 million years ago. The vertebrae off a whale discovered by paleontologists contain roughly 0.25% as much carbon-14 as they would have contained when the whale was alive. How long ago did the whale die? Use k=0.00012

+5
Answers (1)
  1. 29 November, 10:26
    0
    Answer: 49929 years ago

    Step-by-step explanation:

    Radiocarbon dating is a method that provides objective age estimates for carbon-based materials that originated from living organisms

    To calculate the time, we will use exponential formula

    R% = e^ - kt

    Where t = number of years

    0.25/100 = e^ - 0.00012t

    Log both sides with natural logarithm

    Ln0.0025 = lne^-0.00012t

    -5.9915 = - 0.00012t

    t = 5.9915/0.00012

    t = 49928.9 years

    Approximately t = 49929 years
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Modern whales appreared 5-10 million years ago. The vertebrae off a whale discovered by paleontologists contain roughly 0.25% as much ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers