Physics, 22.08.2019 18:30 kenndyllll

Automobiles arrive at the drive-through window at a post office at the rate of four every 10 minutes. the average service time is 2 minutes. the poisson dis- tribution is appropriate for the arrival rate and ser- vice times are exponentially distributed. (a) what is the average time a car is in the system? (b) what is the average number of cars in the system? (c) what is the average time cars spend waiting to receive service? (d) what is the average number of cars in line be- hind the customer receiving service? (e) what is the probability that there are no cars at the window? (1) what percentage of the time is the postal clerk busy? (g) what is the probability that there are exactly two cars in the system? 18 for the post office in problem 17, a second drive- through window is being considered. a single line would be formed, and as a car reached the front of the line it would go to the next available clerk. the clerk at the new window works at the same rate as the current one. (a) what is the average time a car is in the system? (b) what is the average number of cars in the system? (c) what is the average time cars spend waiting to receive service? (d) what is the average number of cars in line behind the customer receiving service? (e) what is the probability that there are no cars in the system? (f) what percentage of the time are the clerks busy? (g) what is the probability that there are exactly two cars in the system?

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 04:30

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Answers: 1

Answer

Physics, 22.06.2019 10:00

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Answers: 2

Answer

Physics, 23.06.2019 03:00

Current vs. forcewhat type of relationship does this graph show?

Answers: 2

Answer

Physics, 23.06.2019 03:00

Use the library or internet to research each planet. make a chart comparing the following: approximate surface temperature relative surface gravity compared to earth atmospheric gases water in any form: solid, gas, or liquid when you have completed your chart, use the information you have collected to answer the following questions: which is the hottest planet? which is the coldest planet? which planet's temperature is closest to that of earth? (note: water boils at 100°c/212°f. water freezes at 0°c/32°f) which planet has the greatest gravitational attraction? which planet has the least gravitational attraction? which planet's gravitational pull is closest to that of earth? do any of the planets have oxygen in their atmosphere? which planet's atmosphere most resembles that of earth? do any of the planets have flowing water? which planet's water resources (solid, gas, or liquid) might be close to the amount on earth? which planet most resembles earth in terms of all of the factors: temperature, gravity, atmosphere, and water? if earth became an uninhabitable planet, which planet do you think would be the next best to live on? explain your answer.

Answers: 2

Answer

You know the right answer?

Automobiles arrive at the drive-through window at a post office at the rate of four every 10 minutes...

Questions