1. Explain about the below terminologies.


a.  1 pa ( pressure unit )


b- Lift coefficient 


c- Drag coefficient 


d- Pressure coefficient


e- Mach Number. 


2- Answer about the below questions in detail.


a- why the water in a cup is boiled at the temperature lower than 100 C at high mountain? 


b- The temperature in your room is higher than outside.

when you open the window of your room, the wind of outside coming in. Explain the reason why?

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