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A 2-m^3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300C. Determine the mass of the stem that has entered and the pressure of the steam in the supple line.
it is found that ozone reaction in water nearly follows first-order kinetics in ozone concentration decreases by 50 in
light bulbs are rated by their power consumption in watts w. electricity is sold in units of energy which is power
At 45° latitude, the gravitational acceleration as a function of elevation z above sea level is given by g = a - bz, where a = 9.807 m/s2 and b = 3.32 x 10-6 s-2. Determine the height above sea level where the weight of an object will decrease by 1.4..
Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively.
you take a tumble while water skiing. the handle attached to the tow rope fallsbeneath the water and remains
if a system has two redundant safety systems with failure rates of 0.16 and 0.22 faults per year respectively what is
Important information about Overall Heat Transfer Coefficient A copper sphere of internal diameter 2 m and wall thickness 40 mm is insulated with 75 mm of expanded polystyrene
A single disc clutch with both sides of the disc effective is used to transmit 10 kW power at 900 r.m.p. the axial pressure is limited to 0.085 N/mm^2. If the external diameter of the friction lining is 1.25 times the internal diameter find the requi..
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
a 1600 kg supercar executes a rolling start and accelerates rapidly. the road is horizontal. neglect tire resistance
a 50kg uniform box is held on an inclined surface by a horizontal rope which passes around a pulley. the coefficient of
at 60oc the surface of water is .0662nm and that of mercury yis .47nm. determine the capillary height changes in these
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