What must your employer provide in addition to the appropriate ppe

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

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false