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Water from the nozzle of a fire hose strikes a flat a stop sign as shown in Figure P7.16. Water exits the nozzle at a velocity of 45 ft/s through a circular exit port of diameter 5 in.
(a) Calculate the horizontal reaction force on the stop sign support.
(b) What, if anything, can you conclude about the fluid flow characteristics in the vertical direction for this situation?
a 50-lb sphere with a radius of qyration of 0.4 ft is accelerated about its centroidal axis. determine the torque
dry ice 560 g is introduced into an evacuated 20l container. the temperature rises and co2 vaporizes. if the pressure
A 1.00%wt Carbon steel (FCC or \gamma?Fe) axel must operate at 850C in an oxidizing environment where the carbon content at the surface of the steel is zero. Only the outermost 200 microns of the component can fall below 0.50%wt C.
Air is compressed from 100 kPa and 20C to 700 kPa in an adiabatic compressor with an isentropic efficiency of 90%. Assuming that the mass flow rate is 0.1 kg/s determine the power input to this compressor, in kW, and the rate of entropy generated. Us..
if the incoming nitrogen is at a pressure of 25 psi and temperature of 20oc and to flow 1200ft3hr. of nitrogen through
a 20 mm diameter steel bar is to be used as a torsion spring. if the torsional stress in the bar is not to exceed 100
The formula for the coefficient of performance 'COP' for air standard refrigeration cycle when we use cold air properties is not given in the text. Derive the expression for COP as function of the compression ratio similar to how the ideal Brayton..
a heat pump with refrigerant-134 as the working fluid is used to keep a space at 25 celsius by absorbing heat from
a solid shaft of 30mm diameter is to be used determine the maximum torque that can be applied without exceeding an
Using the transport theorem approach, derive the conservation of linear momentum equations. State all assumptions. Why the transport theorem is required in the context of aircraft dynamics?
A liquid has a density of 500kg/m^3 and a specific heat of .02 KJ/kg*K. The Liquid fills a rigid container, that is insulated ( no heat transfer ), from a line at P=313kPa and T = 135C. What is the final temperature of the liquid when the container i..
an insulated cylinder having an initial volume of 2 ft3 contains carbon dioxide at 15 psia and 440degf. the gas in then
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