i need answer for all the three question thank you If the rate of mass entering

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i need answer for all the three question

thank you

If the rate of mass entering a control volume is different than the rate of mass leaving a control volume, can it be a steady process? If the rate of mass entering a control volume is the same as the rate of mass leaving a control volume, does it have to be a steady process? A hose fitted with a nozzle results in a high velocity stream of water. If the water can be treated as incompressible, what can you conclude? Is this a steady or unsteady process?

Explanation / Answer

2) no..densiity is changing with time ;

3) yes.mass flow rate can be equal for steady flow only ;

4) steady process as liquid id incompressible ;

5) flow energy because flow also contains kinetic energy

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