Recent content by RazerM

  1. R

    What Initial Pressure and Volume Are Required to Fire a Pellet at 100 m/s?

    Homework Statement 1.75 J is required to fire a spherical pellet of radius 8.75 mm at a maximum velocity of 100 m/s Find appropriate values for the inital pressure and volume and final pressure and volume Homework Equations Adiabatic Expansion P_{1}V_{1}^{\gamma}=P_{2}V_{2}^{\gamma}...
  2. R

    Velocity of longitudinal waves in a solid.

    Homework Statement Our lecturer gave us a general equation for velocity of waves; (where c= wave velocity) c= \sqrt{\frac{\textrm{springiness}}{\textrm{massiness}}} (Excuse the terms, I'd personally rather have been given the equations here..) So for transverse waves on a string/wire...
  3. R

    Partial Differentiation Confusion

    Thanks :) I taught myself to use LaTeX to help me with my Physics Investigation as part of Advanced Higher Physics (Highest level of physics taught in school - Scotland), we never got told to use it but no way was I using MS Office or Openoffice's limited equation typesetting, would have been a...
  4. R

    Partial Differentiation Confusion

    So that means \frac{\partial z}{\partial x}=\frac{3(x+y)^2}{2\sqrt{(x+y)^3-4y^2}}?
  5. R

    Partial Differentiation Confusion

    Homework Statement Find \frac{\partial z}{\partial x} \frac{\partial z}{\partial y} where z=\left( [x+y]^3-4y^2 \right)^{\frac{1}{2}}Homework Equations -The Attempt at a Solution I know that \frac{\partial z}{\partial y}=\frac{3(x+y)^2-8y}{2\sqrt{(x+y)^3-4y^2}} but I am unsure whether...
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