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!

Algebra - how do i solve for this

  1. May 24, 2009 #1
    [tex]\eta = 1 - \frac{Q_c}{Q_h}[/tex]

    I have everything except Qh,

    i stuck the equation into my graphics calculator and get 13039

    n = 0.27
    Qc = 9519 J

    how'd i solve for Qh using that equation?
    cheers
     
  2. jcsd
  3. May 24, 2009 #2
    [tex]\eta = 1 - \frac{Q_c}{Q_h}[/tex]

    [tex]\eta Q_h = Q_h - Q_c[/tex]

    [tex]Q_h(1-\eta)=Q_c[/tex]

    [tex]Q_h=\frac{Q_c}{1-\eta}[/tex]
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Algebra - how do i solve for this
  1. Solve algebraically (Replies: 2)

Loading...