A toy water rocket of empty mass 500 g has an internal volume of 400 cc. If half the volume is filled with water and air is pumped in until the pressure reaches 90 kPa, gage, determine (a) the initial exit velocity of the water when the rocket is released, (b) the initial thrust force on the rocket if the exit is a hole of diameter 2 mm, (c) the time it takes for all the water to be expelled from the rocket, and (d) the height obtained when all the water is spent. (Neglect the drag force.)
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