Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Bacteria Growth Rate

  1. Dec 6, 2008 #1
    1. The problem statement, all variables and given/known data
    A beaker contained 2000 bacteira. one hour later the beaker contained 2500 bacteria. What is the doubling time of the bacteria?

    2. Relevant equations
    rate = (distance)/(time)
    Time to double = .693/((ln(1+r))^t)

    3. The attempt at a solution
    rate = 2500/2000
    My biggest problem is trying to find the rate, I used this at first, but think it is giving me the wrong answer. I know how to finish the problem, i just need help finding the rate. Thanks!
  2. jcsd
  3. Dec 7, 2008 #2


    User Avatar

    Staff: Mentor

    You should think in terms of N=N0ekt.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook