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

Calculate apparent size at a distance

  1. May 30, 2015 #1
    How does one calculate the apparent size of a 7" object at 450'?
  2. jcsd
  3. May 30, 2015 #2


    User Avatar

    Staff: Mentor

    Hi David Millson. Welcome to PF.

    Your question is one that's appropriate for one of the homework help forums. Select one here: https://www.physicsforums.com

    However, when you post there you'll need to show your attempt at solving the problem, otherwise your question will be deleted because you have shown no effort. That's how our homework help forums work.

    Good luck with your studies.
  4. May 30, 2015 #3
    I'm 74 and have had Multiple Sclerosis for 28 years. It was a question I need to answer in my defense against a Vermont State Trooper's perjury. Will you help me?
  5. May 30, 2015 #4


    Staff: Mentor

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook