subject
Engineering, 05.05.2020 04:09 mmoore36

Vehicles begin to arrive at a parking lot after the start of a major sporting event. They are arriving at a deterministic but time-varying rate:
λ(t) = 3.3 − 0.1t
[λ(t) is in veh/min and t is in minutes]. A single parking lot attendant processes vehicles (assigns spaces and collects fees) at a deterministic rate at the station. A queue exceeding four vehicles will back up onto a congested street, and is to be avoided.
How many vehicles per minute must the attendant process to ensure that the queue does not exceed four vehicles?

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
question
Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
question
Engineering, 04.07.2019 18:20
Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?
Answers: 3
question
Engineering, 04.07.2019 18:20
Determine the damped natural frequencies and the steady state response of a decoupled damped forced two degrees of freedom system. 10ä1 + 2q1 20q1 10 cos t; 10q2 +4q2 + 40q2 10 cos t
Answers: 3
You know the right answer?
Vehicles begin to arrive at a parking lot after the start of a major sporting event. They are arrivi...
Questions
question
Mathematics, 20.10.2019 18:30
Questions on the website: 13722365