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4.69 Records maintained by the office of budget in a particular state indicate that the amount of time elapsed between the submission of travel vouchers and the final reimbursement of funds has approximately a normal distribution with amean of 39 days and a standard deviation of 6 days.
a. What is the probability that the elapsed time between submission and reimbursement will exceed 50 days?
b. If you had a travel voucher submitted more than 55 days ago, what might you conclude?
Consider the flow of clockwise vortex of circulation gamma and a source of strength Q, both located at the origin. Show that the result is a spiral flow in which the velocity is everywhere inclined at the same angle to the radius vector from the orig..
Decorative water fountains consist of a water reservoir and underground piping to and from a pump. One such system is shown schematically in the figure. The pipe material is PVC(a table is provided). The outlet line from the pump is 18 m and the inle..
1.water flows at 50oc inside a 2.5-cm-inside-diameter tube such that hi 3500 wm2 oc. the tube has a wall thickness of
a rigid insulated 1.4 m3 container initially contains steam at 1.4 mpa and a quality of 85. liquid water at 10 deg c is
A pneumatic displacement gage has d1=0.762 mm and d2=1.575 mm. The supply pressure is 68919.7 Pa with a random fluctuation of ±483 Pa, and the differential pressure Pd-Pa is measured with a water manometer that may be read with an uncertainty of 12.4..
The 10-kg block rests on the platform for which = 0.4. If at the instant shown link AB has an angular velocity = 2 rad/s, determine the greatest angular acceleration of the link so that the block doesn't slip.
ethane gas burned in stoichiometric proportions of air in a closed flexible container. the reactants are initially at 1
consider a cogeneration power plant modified with regeneration. steam enters the turbine at 6 mpa and 450 celsius and
a 100-kg copper block initially at 110degc is dropped into an insulated tank that contains 150 kg of water at 15degc.
12. 3 kg of refrigerant 22 undergoes a process for which the pressure-specific volume relation is pv^-0.8 = constant. The initial state of the refrigerant is 12 bar and 60 degrees C. The final pressure is 8 bar. Kinetic and potential energy effects a..
air enters an evaporative cooler at 95 kpa 35 degrees celcius and 30 relative humidity and exits saturated. determine
air an ideal gas contained in a rigid insulated tank fitted with a paddle wheel initially at 27 degrees celcius 2 bar
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