Q: Water of density ρ = 998.2 kg/m3 flows
Water of density Ï = 998.2 kg/m3 flows through a fireman’s nozzle—a converging section of pipe that accelerates the flow. The inlet diameter is d1 = 0.10...
See AnswerQ: A sluice gate, which controls flow rate in a channel by
A sluice gate, which controls flow rate in a channel by simply raising or lowering a vertical plate, is commonly used in irrigation systems. A force is exerted on the gate due to the difference betwee...
See AnswerQ: An 8-cm-diameter horizontal water jet having a velocity
An 8-cm-diameter horizontal water jet having a velocity of 35 m/s strikes a vertical stationary flat plate. The water splatters in all directions in the plane of the plate. How much force is required...
See AnswerQ: Water flowing steadily at a rate of 0.16 m3/
Water flowing steadily at a rate of 0.16 m3/s is deflected downward by an angled elbow as shown in Fig. P13–47. For D = 30 cm, d = 10 cm, and h = 50 cm, determine the force acting on...
See AnswerQ: Repeat Prob. 13–47 by taking into consideration the weight
Repeat Prob. 13–47 by taking into consideration the weight of the elbow whose mass is 5 kg. Data from Prob. 13-47: Water flowing steadily at a rate of 0.16 m3/s is deflected downwar...
See AnswerQ: A 16-cm-diameter horizontal water jet with a speed
A 16-cm-diameter horizontal water jet with a speed of Vj = 20 m/s relative to the ground is deflected by a 40° cone moving to the left at Vc = 10 m/s. Determine the external force, F, neede...
See AnswerQ: How do surface forces arise in the momentum analysis of a control
How do surface forces arise in the momentum analysis of a control volume? How can we minimize the number of surface forces exposed during analysis?
See AnswerQ: A tripod holding a nozzle, which directs a 5-cm
A tripod holding a nozzle, which directs a 5-cm-diameter stream of water from a hose, is shown in Fig. P13–50. The nozzle mass is 10 kg when filled with water. The tripod is rated to...
See AnswerQ: Consider an airplane with a jet engine attached to the tail section
Consider an airplane with a jet engine attached to the tail section that expels combustion gases at a rate of 18 kg/s with a velocity of V = 300 m/s relative to the plane. During landing, a thrust rev...
See AnswerQ: A gas in a piston–cylinder device is compressed, and
A gas in a piston–cylinder device is compressed, and as a result its temperature rises. Is this a heat or work interaction?
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