7. The 450-kg ram of a pile driver falls 1.4 m from rest and strikes the top of a 240-kg pile embedded 0.9 m in the ground. Upon impact the ram is seen to move with the pile with no noticeable rebound. Determine the velocity v of the pile and ram immediately after impact. Can you justify using the principle of conservation of momentum even though the weights act during the impact? 14m 0.9

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A: Solution given below step by step Explanation:St

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Q: 4.4) The design shear strength D,V, is A) 81.1 kips B) 482 kips C) 529 kips D) 567 kips

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Q: 0.8 m 20 kN 60 kN 80 kN 0.3 m 0.6 m Fig. P3.36

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?