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A tank of volume V. is filled initially with air at atmospheric density pa,. Beginning at t = 0, a pump delivers to the tank a mixture of air and water. The volumetric inflow rate to the pump is Q, half of which is water having a density pw, and the other half is air at the densitypat . Once inside the tank, the water falls to the bottom, occupying a volume Vw(t) that increases with time (see Figure 1). The air rises to the top of the tank, forming a volume with uniform density pa(t). In terms of the known quantities V. , pat , Q and pw derive expressions for Viv(t) and pa(t) as functions of time t.
the drive roller for a conveyor belt. a link a-b is rotating at 80 rpm counterclockwise .blink a-b is 60mm longlink b-c
a refrigeration system using r-22 as the working fluid has condenser and evaporator pressures of 250 psi and 30 psi
a heat engine has a solar collector receiving 600 btuh per square foot inside which a transfer media is heated to 800
2 kg of saturated liquid water at 1bar is compressed to 25bar and 100C in a water pump. Determine the change in internal energy (kJ) and enthalpy (kJ) of water in two ways. Using the compressed liquid tables
An object initially at an elevation of 5 m relative to Earth's surface with a velocity of 50 m/s is acted on by an applied force R and moves along a path. Its final elevation is 20 m and its velocity is 100 m/s. The acceleration of gravity is 9.81 m/..
a refrigerator consumes 280 w of electric power when it is running. the cost of electricity is 10 cents per kwh. what
a helicopter moves horizontally in the x-direction at a speed of 120 miles per hour. knowing that the main blades
a part subjected to a stress of 50 ksi may experience a single edge surface crack no longer than 0.015 in. which if
calculate the average density of an interply hybrid beam containing m layers of im7 carbon fiber- epoxy and n layers of
a composite rod consists of two different materials a and b each of length 0.5 l. the thermal conductivity of material
A gasoline engine is modeled as an Otto cycle. It has at temperature and pressure at the beginning of compression of 10°C and 90 kPa. The compression ratio is 7 and the specific energy added to the air during the heat addition process is 1432.46 ..
ten grams of liquid water at 95 c are contained in the insulated container shown. the pin holding the frictionless
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