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!

What is the gravitational Field?

  1. Sep 10, 2008 #1
    Hint: Use shell theorem and/or flux argument for a symmetrical shell.

    A thin spherical shell has a radius of 3.4 m and a mass of 456 kg. The Universal gravitational constant is 6.6726 x 10^-11 N m^2/kg^2.

    What is the gravitational field 1.4 m from the center of the shell? Answers in units of N/kg.

    Attempt--
    I tried this equations, a= - G(delta m)/ (x^2 + y^2)
     
  2. jcsd
  3. Sep 10, 2008 #2
    forget equations. picture the flux
     
  4. Sep 10, 2008 #3

    LowlyPion

    User Avatar
    Homework Helper

    The gravitational field is a vector field. The gravity at the center will be the integral of all the mass of the shell acting at that point through all directions.

    Maybe read up a little about the Shell Theorem?
    http://en.wikipedia.org/wiki/Shell_theorem
     
  5. Sep 10, 2008 #4
    wait..is the answer zero?
     
  6. Sep 10, 2008 #5
    yip.
     
  7. Sep 10, 2008 #6
    eh.. thanks lol! Need to pay attention in class a bit more :)
     
  8. Sep 10, 2008 #7

    LowlyPion

    User Avatar
    Homework Helper

    Correctamundo.

    Good luck.

    Study Tip: Read next week's problems before going to next week's class. Then you know what part of the lecture to snooze through.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: What is the gravitational Field?
  1. Gravitational fields (Replies: 2)

  2. Gravitational fields (Replies: 1)

  3. Gravitational fields (Replies: 23)

Loading...