M is so sad people help me plz

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false