A Styrofoam cylinder, filled with water, sits on a table. You then poke a small hole
through the side of the cylinder, 20 cm below the top of the water surface. What is
the speed of the fluid emerging from the hole?
Let's write the Bernoulli equation (indexes 1 and 2 corresponds to the top and bottom, respectively):
Since "v_1=0", "h_2=0" and "p_1=p_2", we get:
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