1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Mass of Earth Period

  1. Sep 25, 2012 #1
    1. The problem statement, all variables and given/known data

    If you suddenly multiplied the mass of Earth by a factor of 4, how would the period of a satellite change, if the radius of its orbit did not change?

    4 times as long

    1/4 as long

    2 times as long

    1/2 as long


    2. Relevant equations

    3. The attempt at a solution

    I am not sure what equation to use...
  2. jcsd
  3. Sep 25, 2012 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    Use Newtons Law of Gravity.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook