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Find the probability that the firm receives 3 or more complaints in a day. Find the probability that the firm receives 16 or more complaints in a 5-day period.
The mean number of patients admitted per day to the emergency room of a small hospital is 2.5 If, on any given day, there are only 6 beds available for new patients.
The air in a room has a dry-bulb temperature of 70 F and a wet-bulb temperature of 60F. Assuming a pressure of 14.7 psia, determine (a) the specific humidity, (b) the relative humidity, and (c) th
A gas mixture at 350 K and 300 kPa has the following volumetric analysis: 65 percent N2, 20 percent O2, and 15 percent CO2. Determine the mass fraction and partial pressure of each gas.
The loan will be paid back by four year uniform loan payments. Develop the ATCF table and find the present worth of the project. d. Back to (a). If the annual net benefit is $X, find the ATCF.
Determine the: Temperature in degrees K at the exit of the compressor if the compressor operates isentropically, i.e. T2s. Isentropic compressor efficiency using enthalpies.
Calculate the: a. Quality of the steam at the turbine exit b. Isentropic turbine work c. Actual turbine work (Btu/lbm) d. Isentropic efficiency of the turbine.
When the package has moved a distance of 6 m its velocity is 4 m/sec. If the friction coefficient between the package and the surface is 0.2, determine the maximum value of the force F.
When the radiator is filled with dry saturated steam at pressure of 200 kPa all valves to the radiator are closed. How much heat will have transferred to the room when the pressure of the steam is 7
The other slides over the horizontal curved rod, of which the shape is described by the equation r = 1.5(2 - cosq) ft. If both collars weight 0.75 lb, determine the normal force which the curved rod
The cylinder is subjected to a force of 60 N, which is always directed as shown, determine the speed of the cylinder when t = 2 s. The cylinder has a speed v = 2 m/s when t = 0.
If the helix descends 8 ft for every one revolution, determine the speed of the car in t=4 s. Also, how far has the car descended in this time? Neglect friction and the size of the car.
Assuming the average rate of heat dissipation from people in anexercise room is 525W, determine the rate of heat gain of the exercise room from people and the equipment at peak load conditions. Note
A passive band-pass filter is to be built by connecting a passive 1st order low-pass filter to a passive high-pass filter. So what is the output impedance of the low-pass filter? and what is the in
Saturated liquid refrigerant R-134a at 40 deg. C is throttled into an evaporator coil where the temperature is -30 deg. C What is the quality of the refrigerant after the expansion?
The room is closed, sealed, and insulated to isolate the performers from outside distractions. Find the temperature in the room 0.5 hour after six 800-w lights are turned on.
Saturated liquid refrigerant R-134a at 40 deg.C is throttled into an evaporator coil where the temperature is -30 deg.C. What is the quality of the refrigerant after the expansion?
A heat loss of 4 kJ/kg occurs during the process. If the changes in potential and kinetic energies are neglected, determine the mass flow rate.
A sheet of pure BCC iron, 1mm thick, was exposed to a carburizing gas atmosphere at 700 degrees Celsius while the other surface was exposed to a decarburizing gas (essentially a vaccuum).
The average grain diameter of a brass was measured as a function of time at 650 degrees Celsius. What was the original grain diameter? (b) What grain diameter would you predict after 150 min at 650 de
Determine the maximum radius of the sphere so that the temperature of the sphere is not a function of location. Define yourself for the necessary parameters.
The air exits at 600 kPa and 300C. During this process, 250W of heat are lost to the environment. What is the required power input?
What is the resulting acceleration? In what direction is the acceleration? If the 5 lbm object is allowed to fall freely, what accel. would it have?
Calculate the dose equivalents in rem for each radiation for a 2 hour exposure to: a. 20-mrad/h gamma b. 15-mrad/h alpha c. 5-mrad/h fast neutron d. 25-mrad/h thermal neutron.
If the surface is illuminated by light of wavelength 500 nm and 300 nm, for each case are photoelectrons produced and if so what is their kinetic energy in MeV? Note 1 nm = 10-9 m.