1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Weight of air on a piece of paper

  1. Apr 16, 2017 #1
    1. The problem statement, all variables and given/known data -
    What is the weight of air on a piece of 8 1/2" x 11" piece of paper? Assume you're at sea level.

    2. Relevant equations
    None.


    3. The attempt at a solution
    All I know is atmospheric pressure is 14.7 lb/in2 at sea level. I have no idea how to go about calculating this problem.
     
  2. jcsd
  3. Apr 16, 2017 #2

    gneill

    User Avatar

    Staff: Mentor

    Did you even consider the units you wrote for pressure? What do they mean?
     
  4. Apr 17, 2017 #3

    scottdave

    User Avatar
    Homework Helper
    Gold Member

    Paying close attention to the dimensions, is often all you need to figure out a likely formula. I keep the units through all calculations when working through a problem. It helps to show up mistakes that could be made (like dividing instead of multiplying, or maybe I forgot to square something). The answer will have the wrong units, then I will know that I need to go back and fix something.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Weight of air on a piece of paper
  1. Weight into air pressure (Replies: 17)

  2. Air Resistance & Weight (Replies: 27)

Loading...