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Each of two buses carries passengers from a depot to various destinations and return for another trip with a round trip time very nearly equal to R. The buses are run by independent drivers, however, who make no attempt to coordinate their schedules. Actually, one bus runs slightly faster than the other so that over many trips the fraction of trips that the second bus leaves within a time t after the first bus is t/R , 0 < t < R. In effect, the times between departures of the buses are random, with a uniform distribution over the interval 0 < t < R.
If passengers arrive at the depot at a constant rate, what is the average time that a passenger must wait for the next bus? Compare this with the wait if the headways are controlled so as to be R/2.
The 3.0-ft diameter piper is 3,400 feet long with a steady flow rate of 10,000 gal/minozone (in mg/L) should be Injected at the head of the piper so what there will be an ozone concentration of 1.0mg/L
Determine the mass and specific volume of argon gas in a vessel at 150 kPa and 20°C. The vessel is spherical, with radius 5 m.^5
The boat is travelling along a circular path with a speed v=(0.0625t). Determine the magnitude of its acceleration when t=10s
At a certain location during the winter, the average air temperature is 10 degrees celcius and the net radiation is 40W/m^2 and during the summer the net radiation is 200W/m^2 and the temperature is 25 degrees celcius.
Natural gas is stored in very large vessels consisting of a floating tank and a liquid seal. The pressure in the tank is constant because the weight of the floating tank is constant. In the morning, the temperature of the natural gas is 300 K.
A water storage tank is on the roof of a factory building & the surface of the water is 50 ft above the floor of the factory. if a pipe connects the storage tank to the floor level & the pipe is full of static water
a 10.0 inch long 10-guage wire of yellow brass (E=105 GPa) is subjected to an axial tensile force of 400 lbs. Find the normal sress and deformation in the wire. A 10-guage wire has a diameter of 2.588 mm.
You have two wires connected end to end. Wire 1 is copper and wire 2 is made using a special carbon conductor. Wire 1 has a resistance of 0.215 ohms/ft and is 500 ft long. Wire 2 has a resistance of 0.141 ohms/ft and is 700 ft long.
Activity Description Duration Immediate Predecessors ST Start milestone - Activity Description duration Inmdiate predesesor ST Start milestone - - A excavate st. 1 4 ST B Order & steel del. work 7 ST C Formwork st.
Establish a grass cover over a 10ha landfill. The root zone of the grass is 40cm deep. Increase the volumetric water content of root zone from 12% to 24%. How many cubic meters of water are needed?
A rubber ball is inflated to a pressure of 65kpa. At that pressure, the diameter of the ball is 240 mm and the wall thickness is 1.25 mm.The rubber has a modulus of elasticity E of 3.6 MPa and a poisson's ratio of 0.48.
A pneumatic-tired tractor with a 354 - hp engine has a maximum speed of 3.6 mph in 1st gear. Determine the max. rimpull of the tractor in each gear if the engine effieicency is 91%.
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