A 2-in. diameter orifice plate is inserted in a 3-in. diameter pipe. If the water flow rate through the pipe is 0.90 cfs. (take your density equal to 1.94 slugs/ft3, and absolute viscosity equal to 2.34 x 10-5 lb. s/ft2). What is the velocity of the air (in ft/s) passing through the device before the orifice plate? (Give your answer in two decimals, do not enter any units)

What precautions should you take to prevent injuries when dealing with heavy loads?

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]