smitty8371 Messages 10 Reaction score 0 Thread starter Dec 13, 2011 #1 does anyone know the formula for matter mass density i know for photon density is row=8.36*10^-33 * T^4
does anyone know the formula for matter mass density i know for photon density is row=8.36*10^-33 * T^4
gash789 Messages 57 Reaction score 0 Dec 13, 2011 #2 What sort of mass? Without context usual mass density is simply the mass you have over the volume it occupies.
What sort of mass? Without context usual mass density is simply the mass you have over the volume it occupies.