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A constant pressure container is filled with 1 kg of stainless steel and 0.5 kg of PVC (polyvinyl chlo- ride) both at 20C and 0.25 kg of hot air at 500 K, 100 kPa. The container is now left alone wi
The velocity of flow toward the sphere along the longitudinal axis is found to be u = - U0 (I - r~/_xl), where r0 is the radius of the sphere and x the distance from its center.
Water occupies the bottom 0.8 m of a cylindrical tank.On top of the water is 0.3 m of kerosene, which is open to the atmosphere. If the temperature is 20 degrees C, what is the gage pressureat the b
If all trucks travel at a speed v', cars at a speed v, and the fraction of vehicles passing a stationary observer that are trucks is p, what fraction of vehicles would be trucks on a photograph
What is the equation for average vehicle delay Is it averge queue over arrivals Average queue over average arrivals
A heat pump that operates on the ideal vapor compression cycle with refrigerant 134a is used to heat water from 16 to 56 degrees Celsius at a rate of 0.20kg/s. The condensor and evaporator pressures
Air at 14.7 psia, 55*F, 60 percent relative humidity is first heated to 72*F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75*F and 6
that acts at a 45 degree angle from the side of the footing (it acts diagonally across the top of the footing) determine whether the resultant force acts within the kern. If it does, then compute th
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A person of dubious technical ability tells you that two of the direction angles for a particular vector are 30 and 40 degrees. If these direction angles are feasible, then determine the possible va
Describe mathematically and explain the Principle of Linear Impulse and Momentum. What is Conservation of Linear Momentum and how is it related. What is the difference between Linear Momentum and An
The canal shown below is to be widened so that it can carry twice the amount of water. Determine the additional width L required if all other parameters (i.e. flow depth, bottom slope, surface mater
What would be the resistance on a level road. What horsepower must be delivered to the wheels on the grade? If the efficiency is 80%, what must be the rated horsepower of the motor.
Primary treatment removes ~25 percent of the BOD. Calculate the volume (m3) and approximate hydraulic retention time (h) of the aeration basin required to run the plant as a "high rate" facility (F
A company has been discharging its waste into a holding pit for a long time. For the last several years, the pit has been full and overflowing into a local river. The waste concentration has been ne
The forward direction is given by the alphabeteical order of the station names. Each angle is measured clockwise from the back direction to the forward direction so that they are on the left of the
The bearing of one side is given. With this bearing and the adjusted interior angles, draw a sketch of the traverse. The alphabetical order of the stations gives the forward, counterclockwise direct
Conditions in the sewage pipe are Qs= 0.5 m^3/s, and Cs= 100mg/L. The pollutant is destroyed in the lake with a first-order rate constant of 0.2/d. The flow rate out of the lake is 5.0 m^3/s.
A completely mixed retention basin is used to treat an industrial waste water consisting of a non-conservative pollutant, using a reaction that destroys the pollutant according to first-order reacti
A hydrologic structure (e.g. a dam or a dike) is said to be designed for the N-year flood if it has a capacity which will be exceeded only by a flood equal oto or greater than N-year flood.
The partial pressure of the gasses in a 22,414-L volume of air at STP are: oxygen, 21,224 kPa; nitrogen, 79,119 kPa; argon, 0.946 kPa; and carbondioxide, 0.036 kPa. Determine the gram molecular weig
calculate the alkalinity as CaC03 of water that contains 85mg/l of HCO3, 120 mg/l of CO3 and 2 m/l of OH.
A quality characteristic is monitored by a control chart designed so the probability that a certain out-of-control condition will be detected on the first sample following the shift to that state is
Topic is on RFID (Radio Frequency Identification) RFID Privacy and Security
A 1-m^3 volume tank contains a mixture of 18.32 moles of oxygen, 16.40 moles of Nitrogen, and 6.15 moles of carbondioxide. What is the partial pressure of each gass componet at 25 degrees