A company is measuring the loss coefficient for a new valve. The valve is placed in a section of pipe with diameter D = 9 cm. The flow rate is Q = 0.05 m3/s. If the pressure drop is Δp = 61.73 kPa, what is the loss coefficient for the valve? The specific weight of water is γw = 9.802 kN/m3

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit. explain why the pneumatic piston stumbles when it hits an obstacle.

Fluids at rest possess no flow energy. a)- true b)- false

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?