The hazard communication standard requires employers to do all of the following except A.)Obtain STS for hazardous in toxic substances B.) Train employee on how to safely use and obtain information about the hazardous substances in their workplace
C.) Label containers of hazardous
D.) prepare and post a list of employees who handle hazardous and toxic substances in the workplace

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

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent