The reservoirs in Fig. P6.55 contain water at 208C. If the pipe is smooth with L 5 4500 m and d 5 4 cm, what will the fl ow rate in m3 /h be for Dz 5 100 m

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

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

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