Air flow isentropically through a converging nozzle attached to a reservoir, where the pressure is 170 kPa and temperature is 300 K. At the inlet to the nozzle the Mach number is 0.2, the nozzle discharge to the atmosphere (100kPa). The discharge area is 0.02 m2. Determine the magnitude and direction of the force that must be applied to hold the nozzle in place. (1 point)

Which best represents the law of conservation of mass ?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.