Recent content by outoftown

  1. O

    Understanding de Broglie formula for massless particles

    I have taken down in my notes that for massless particles the formula by DeBrogle becomes E = pc, where p is momentum and c is the speed of light. But what I don't understand is how you can calculate momentum without mass? I thought momentum was mass times velocity? The specific example I...
  2. O

    How Much Heat is Required to Vaporize Water in a Rigid Tank?

    Homework Statement A rigid tank has a volume of 0.01m3. It initially contains saturated water at a temperature of 200°C and a quality of 0.4. The top of the tank contains a pressure-regulating valve that maintains the vapor at constant pressure. This system undergoes a process whereby it is...
Back
Top