00:01
Okay, so when looking at this question, we're looking at what is mechanical energy? okay, so mechanical energy is the sum of kinetic energy and potential energy of a system.
00:24
Okay, and thermal energy is the energy associated with the random motion of particles in a substance.
00:57
Okay, so it's a form of kinetic energy, but it's related in the sort of microscopic motion of atoms instead of mechanical energy, which is macroscopic.
01:07
Alright, and now for a fluid stream, okay, what are the forms of mechanical energy in the fluid stream? so we have kinetic energy, ke, as half rho a v squared, where rho is the fluid density, a is the cross -sectional area to which the fluid flows through, and v is the velocity of the fluid...