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A storage tank 30 m high is filled with gasoline.
(a) Find the gauge pressure at the bottom of the tank.
(b) Calculate the force that acts on a square access hatch at the bottom of the tank measures .5 m by .5 m.
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A rock takes 2.1 s to hit ground when it is thrown straigh up from a cliff with initial velocity of 7.5 m/s. Calculate height of the cliff in m & length it would take to reach the ground if thrown down with same speed.
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