Answer this question 18. A water barrel can withstand a pressure of 2 X 105 N/m2. The
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18. A water barrel can withstand a pressure of 2 X 105 N/m2. The lid of the barrel has a vertical tube passing through it and the cross-sectional area of this tube is 0'3 cm2. Water is slowly poured into the tube. If the tube is 21 m long will the barrel burst before the tube is full of water
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