![subject](/tpl/images/cats/User.png)
Engineering, 23.03.2020 20:00 hamidaakter936848
Consider commuter trains serving contiguous stations. At each station, trains stop to load and unload passengers and this requires a fixed "dwell" time, d. Between stations, trains travel at cruise speed, v. We ignore the effects of acceleration and deceleration. For safety reasons, consecutive trains must always be physically separated by a minimum block distance, b, where block distance is measured from the rear end of a leading train to the front end of the following train. Trains have physical length L. Determine the maximum flow of trains possible given the above operating conditions. Express this maximum flow in terms of the variables given.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 19:20
To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.
Answers: 1
You know the right answer?
Consider commuter trains serving contiguous stations. At each station, trains stop to load and unloa...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 07:40
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 07:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 07:40
![question](/tpl/images/cats/mat.png)
Mathematics, 05.03.2021 07:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.03.2021 07:40
![question](/tpl/images/cats/en.png)
English, 05.03.2021 07:40
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 05.03.2021 07:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/pravo.png)
Law, 05.03.2021 07:40