A7-cm diameter horizontal pipe connected to the side of a tank at 4 m below the water surface in the tank discharges water to the atmosphere. a pump located in the pipe can add head to the flow by the relation, hp (m) = q^2 (q in m^3/s) if the losses in the system amounts to 5 m, determine the outflow velocity of the pipe.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length