1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Brut [27]
3 years ago
13

Customers exiting a bottleneck form a Poisson process with a stationary flow of 400 per hour. What is the expected amount of tim

e needed to observe one customer's (exit) headway that is larger than five times the mean headway
Business
1 answer:
Minchanka [31]3 years ago
3 0

Answer:

Customer's (exit) = 0.03 minutes per person

Explanation:

Given:

Flow (Ф) = 400 per hour

Times = 5 times headway

Computation:

5 times Poisson Distribution = 400 per hour × 5 time

5 times Poisson Distribution = 2,000 persons

Computation of expected amount of time needed to observe one customer :

Customer's (exit) = 1 hour / 2,000 persons

Customer's (exit) = 60 minutes / 2,000 persons

Customer's (exit) = 0.03 minutes per person

You might be interested in
Joe, a warehouse laborer, has been instructed to restock boxes from a cancelled shipment. Each box weighs about 40 pounds. Which
ella [17]
I say he should wear boots, in case he drops one on his foot. Hard hat, in case something falls on his head, and padded gloves so his hands will not get sore.
8 0
3 years ago
The City of San Antonio is considering various options for providing water in its 50-year plan, including desalting. One brackis
o-na [289]

Answer:

The present worth of the desalting option revenue is 29,567,434.81 or $29.6 million.

Explanation:

Note: Calculation of the present worth of the desalting option revenue.

In the attached excel file, the revenue from year 6 to 21 is calculated using the following formula:

Revenue in the current year = Revenue in the previous year * (100% - Decreasing rate) ................... (1)

Where;

Decreasing rate = 10%

From the attached excel file, the present worth (in bold red color) of the desalting option revenue is 29,567,434.81 or $29.6 million.

Download xlsx
8 0
3 years ago
In a closed system one kilogram of carbon dioxide (CO_2) is expanded reversibly from 30 degree C and 200 kPa to 100 kPa pressure
lianna [129]

Answer:

the total work W =  29.05 kJ

the change in total internal energy is \mathbf{\Delta U = - 27.19 \ kJ}

the  total heat transferred in [kJ] is  Q = 1.860 kJ

Explanation:

Given that

mass of carbon dioxide in the closed system = 1 kg

Temperature T_1= 30 ^0 C = (273+30 ) K = 303 K

Pressure P_1 = \ 200 \ kPa

Pressure P_2 = 100 \ kPa

polytropic expansion n = 1.27

Note that we are also given the following data set:

R = 188.9 J/kg.K

c_v = 655 J/kg.K

So; for a polytropic process ; PV^{1.27} = c

\dfrac{T_2}{T_1}= ( \dfrac{V_1}{V_2})^{n-1}  = (\dfrac{P_2}{P_1})^{\frac{n-1}{n}

T_2 = T_1 [\dfrac{P_2}{P_1}]^{\frac{n-1}{n}

T_2 = 303 [\dfrac{100}{200}]^{\frac{1.27-1}{1.27}

T_2 = 261.48 \ K

Since the system does not follow the first order of thermodynamics; To calculate the total work by using the expression:

W = \dfrac{P_1V_1-P_2V_2}{n-1} = \dfrac{mR(T_1-T_2)}{n-1}

W = \dfrac{1*188.9(303-261.48)}{1.27-1}

W =  29048.62222 J

W =  29.05 kJ

Thus, the total work W = 29.05 kJ

The change in internal energy can be expressed  by the formula:

\Delta U = mc_v (T_2-T_1)

\Delta U = 1*655(261.48-303)

\Delta U = -27195.6 \ J

\mathbf{\Delta U = - 27.19 \ kJ}

Hence; the change in total internal energy is \mathbf{\Delta U = - 27.19 \ kJ}

Finally; to determine the  total heat transferred in [kJ]; we go by the expression for the first order of thermodynamics which say:

Total Heat Q = ΔU + W

Q = (-27.19 + 29.05)kJ

Q = 1.860 kJ

Hence; the  total heat transferred in [kJ] is  Q = 1.860 kJ

8 0
3 years ago
Why does the government allow monopolies
romanna [79]

Answer:

Monopolies are not allowed. They are illegal because they stunt competition in the market. The United States government does not allow it.

3 0
4 years ago
The beginning balance in Cash was $3,500. Additional cash of $2,000 was received. Checks were written totaling $2,500. The cash
Svetach [21]
Your bank account has 3,500 in it. You add 2,000 to your account because someone gave it to you. That will leave you with 5,500 But, its time for you to make out your monthly bills. So take your 5,500 in your account and subtract 2,500. it will leave you with a cash balance of 3,000.
6 0
3 years ago
Read 2 more answers
Other questions:
  • PBJ Corporation issued bonds on January 1, 2006. The bonds had a coupon rate of 5.5%, with interest paid semiannually. The face
    9·1 answer
  • You can spend $100 on either a new economics textbook or a new CD player. If you choose to buy the new economics textbook, the o
    6·1 answer
  • An adjusted trial balance should be prepared immediately:_________
    12·1 answer
  • ______________ occurs when a national government or central bank intentionally adjusts its money supply to affect the exchange r
    15·1 answer
  • Dowell Company produces a single product. Its income statements under absorption costing for its first two years of operation fo
    9·1 answer
  • On January 1, 2020, Blue Co. purchased 24,000 shares (a 10% interest) in Elton John Corp. for $1,300,000. At the time, the book
    6·1 answer
  • The most recent financial statements for Cardinal, Inc., are shown here: Income Statement Balance Sheet Sales $23,500 Assets $12
    13·1 answer
  • Liabilities are $130,000 and equity is $226,000. What are total assets?
    7·1 answer
  • Which analyst position analyzes information using mathematical models to help business managers make decisions?
    14·2 answers
  • PLEASE HELP ME!! sos
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!