Hi Guys. I hope some of you are able to help me out. This is NOT a homework. I have to explain the difference between the three different rate of change (time derivatives) of a property (such as mass, momentum, internal energy, etc) in a continuum? 1 )The partial time derivative 2) The material time derivative 3) The total time derivative Can some of you help me out? Im very lost at this field, and I hope some of you can help me a little bit og maybe guide me through.