Engineering, 23.04.2021 20:50 tdahna0403
Water is flowing through a 12-cm-diameter pipe that consists of a 3-m-long vertical and 2-m-
long horizontal section with a 90° elbow at the exit to force the water to be discharged
downward, as shown in Fig. 2b, in the vertical direction. Water discharges to atmospheric air at
a velocity of 4 m/s, and the mass of the pipe section when filled with water is 15 kg per meter
length. Determine the moment acting at the intersection of the vertical and horizontal sections of
the pipe (point A). What would your answer be if the flow were discharged upward instead of
downward?
Answers: 3
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Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
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Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
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Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
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Water is flowing through a 12-cm-diameter pipe that consists of a 3-m-long vertical and 2-m-
long...
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