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Question: 681213 please answer the questions in less an hour...

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6,8,12,13 please answer the questions in less an hour
10 m 30° 40 m note: neglect air drag A projectile is fired over a 10 m high barrier as shown. The velocity that the projectile needs to just clear the barrier is most nearly O (A) 10 m/s O (B) 20 m/s O (C) 30 m/s O (D) 40 m/s
A pump has an efficiency of 65%. It is driven by a 550 W motor. The pump produces a pressure rise of 120 Pa in water. What is the required flow rate? O (A) 3.0 mys O (B) 34 mls O (C) 4.6 m3/s O (D) 4.8 m/s
2 Oa a day when the baromethie presure is 760 mm Hg, a vacuum gauge indicates 500 mm Hg: What is the approximate absolute pressure corresponding to the gauge reading? (pue- 13 600 kg/m) 3 (A)3.S kPa O (B) 13 kP O (C) 35 kPa O (D) 47 kPa. 9 p Flag < Prev Next > o-
What law describes the idealized deflection of a spring? O (A) Hookes law O (B) Youngs law O (C) Boyles law O (D) Sterlings law
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