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: First timer at physics needs help

  1. Jun 10, 2010 #1
    1. The problem statement, all variables and given/known data
    3 3
    6.21x10 kg/m converted to slugs/gal

    2. Relevant equations

    3. The attempt at a solution

    I don't know where to begin to attempt this. I am having a lot of trouble with conversions. Please help. I have never taken physics before. Thank you
  2. jcsd
  3. Jun 10, 2010 #2


    User Avatar
    Homework Helper

    I think you want to convert kg/m3 right?

    Well 1 kg is how many slugs?

    How many m3 are in a gal?
  4. Jun 11, 2010 #3
    1 kg=0.068521 slug
    1 gal =0.003785 m^3

    (6.21*10^3) kg /m^3= (6.21*10^3) *(0.068521)*0.003785 slug/gal
  5. Jun 11, 2010 #4


    User Avatar
    Homework Helper

    right so 1 kg=0.068521 slug and 1m3 = 264.172052358. You are converting 1 kg/ 1 m3. So you are correct in what you are doing, but you need to divide, not multiply.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook