Recent content by Shovon00000

  1. Shovon00000

    Question about the 2nd law of thermodynamics (heat loss)

    Assume that a closed system of cylindar filled with ideal gas consists of a movable piston.We know from the 1st law dQ=dU +dW. According to the 2nd law mechanical energy can be totally converted into heat energy but heat energy cannot be converted completely into mechanical energy.The question...
  2. Shovon00000

    Undergrad Expressing a differential equation into a different format

    How do we express this differential equation (dy/dx)= (y/x) + tan(y/x) into this form( Mdx + Ndy=0) where M,N are functions of (x,y) ?
  3. Shovon00000

    High School Calculating the Angle Between Virtual Sources of Fresnel's Biprism

    Why is the angle in radians when we calculate the distance between the virtual sources of Fresnel's biprism??