Vehicles begin arriving at an amusement park 1 hour before the park opens, at a rale of four vehicles per minute. The gale to the parking lot opens 30 minutes before the park opens. If the total delay to vehicles entering the parking lot is 3600 vehicle-minutes, (a) how long after the first vehicle arrival will the queue dissipate and (b) what is the average service rate at the parking lot gate? Assume a D/D/l queueing system at the parking lot gate.

Answer:

a) ≈ 30 mins

b) 8 vpm

Explanation:

a) Determine how long after the first vehicle arrival will the queue dissipate

The time after the arrival of the first vehicle for the queue to dissipate

= 29.9 mins ≈ 30 mins

b) Determine the average service rate at the parking lot gate

U = A / t

where : A = 240 vehicles , t = 30

U = 240 / 30 = 8 Vpm

attached below is a detailed solution of the given problems above

stole energy is also called

A glass bottle washing facility uses a well agitated hot water bath at 50°C with an open top that is placed on the ground. The bathtub is 1 m high, 2 m wide, and 4 m long and is made of sheet metal so that the outer side surfaces are also at about 50°C. The bottles enter at a rate of 800 per minute at ambient temperature and leave at the water temperature. Each bottle has a mass of 150 g and removes 0.6 g of water as it leaves the bath wet. Makeup water is supplied at 15°C. If the average conditions in the plant are 1 atm, 25°C, and 50 percent relative humidity, and the average temperature of the surrounding surfaces is 15°C, determine
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Required:
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2.3
What does NBT stand for?​

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Question text

A man leaves home for a cycle ride and comes back home after a half-an-hour ride covering a distance of one km. What is the average velocity of the ride?​

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