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!

Determine the density of a planet in SI units

  1. Apr 24, 2012 #1
    1. The problem statement, all variables and given/known data
    Determine the density of fictional planet in SI units from the information


    2. Relevant equations
    Planets mass 1.28x10^22 Kg divided by radius 1.12x10^3Km = 1.14x10^25 Kg/m3

    3. The attempt at a solution
    My answer seems all wrong, the SI unit should be in Kg/m cubed. Is radius equal to the volume as I feel that this is where the calculation went wrong, or maybe what I have got is right.
     
  2. jcsd
  3. Apr 24, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi surfingian! welcome to pf! :smile:

    density is per volume :wink:
     
  4. Apr 24, 2012 #3
    The radius is not the volume. ##Volume=\frac{4}{3} \pi r^3##
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Determine the density of a planet in SI units
  1. Si units (Replies: 2)

  2. SI units (Replies: 12)

  3. SI unit for pressure (Replies: 3)

  4. SI Unit analysis (Replies: 3)

Loading...