Recent content by Mtscorpion12

  1. M

    Inverse Square Law with Half Value Layers for X-Rays

    Hello all, I have posted on Physics Forums a few times in the past, but mostly for help with my old physics classes and not anything in the real world. Part of my work involves radiography, but it is generally done in a field environment where we just shut down large sections of land to safely...
  2. M

    Calculating Work Done by Expanding Gas in an Automobile Engine

    Thank you both for the help. I ended up setting P = constant/Vγ and integrating from there. I appreciate it.
  3. M

    Calculating Work Done by Expanding Gas in an Automobile Engine

    Homework Statement In a cylinder of an automobile engine, immediately after combustion the gas is confined to a volume of 50.0 cm3 and has an initial pressure of 3.00x106 Pa. The piston moves outward to a final volume of 300 cm3, and the gas expands without energy transfer by heat. (a) What...
  4. M

    Instantaneous Displacement of a Sound Wave

    Clearly I overthought this problem way too much. I got it now. Thank you very much.
  5. M

    Instantaneous Displacement of a Sound Wave

    Homework Statement A sinusoidal sound wave moves through a medium and is described by the displacement wave function s(x,t) = 2.00cos(15.7x - 858t) where s is in micrometers, x is in meters, and t is in seconds. Find a) the amplitude, b) the wavelength, and c) the speed of this wave. D)...
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    What degrees can a Space Studies major pursue after graduation?

    Hey everyone. I've been using Physics Forums since I started taking Calculus and Physics, and decided it's about time for me to sign up. I'm a Space Studies major at American Military University and plan on going for either a Mathematics or Astronomy degree after I graduate in August. Thanks...
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