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An East Coast estuary has a tidal period of 12.42 h (the semidiurnal lunar tide) and tidal currents of approximat 80 cm/s. If a one-five-hundredth-scale model is constructed with tides driven by a pump and storage apparatus, what should the period of the model tides be and what model current speeds are expected?
determine the instantaneous rate of heat transfer from a 1.5-cm-diameter ball bearing with a surface temperature of 150
The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively. Calculate the force of attraction between these two ions at their equilibrium interionic separation.
a pump is located 4.5 m to one side of and 3.5 m above a reservoir. the pump is designed for a flow rate of 6 ls. for
Steam at 550 lbf/in.2, 70 oF enters a turbine operating at steady state and exits at 1 lbf/in.^2. The turbine produces 500 hp. For the turbine, heat transfer is negligible as are kinetic and potential energy effects.
1. An air compressor operates at steady state with air pressure of 50 bar. Kinetic and potential energy effects are negligible. Determine the pump work input, in kJ per kg of water flowing, using (a) Eq. 6.51c, (b) an energy balance. Obtain data f..
a 4.0 m3 rigid tank contains 3.7 kg of superheated water vapor initially at .20mpa . an electric radiator heating
A sine wave at frequency f= 90 Hz is sampled digitally at sampling frequencies fs=200,160 and 50 Hz respectively. For each case, discuss whether there is aliasing. Also for each case, calculate the aliasing (perceived) frequency.(b) Using EXCEL (or M..
piston having a diameter of 5.48 inches and a length of 9.50 in slides downward with a velocity v through a vertical
A building has a calculated cooling load of 24 tons, of which 6 tons is latent load. The space is to be maintained at 72 F db and 50% relative humidity. 15% by volume of the air supplied to the space is outdoor air at 95 F db and 65% relative humidit..
A cube of linear elastic material is subjected to a vertical compressive stress sigma1 in the 1-direction, but it is now constrained ( e = 0) in both the 2- and 3- directions. Find expressions for the induced transverse stresses, sigma2 and sigma3 in..
Find the Doppler shift of light reflected directly back from a mirror that is approaching the observer with speed v, and show that it is the same as if the image were moving toward the observer at speed 2v/(1 + v2/c2).
a fluid of viscosity micro is placed between two horizontal circular disks of the same radius r. the disk at z 0 is
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