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AleksAgata [21]
3 years ago
9

4. Three routes connect an origin and a destination with performance functions tl = 8 + 0.5x1, t2 = 1 + 2x2, and t3 = 3 + 0.75x3

, with the x's expressed in thousands of vehicles per hour and the t's expressed in minutes. If the peak-hour traffic demand is 3400 vehicles, determine user-equilibrium traffic flows. Note: there are 823 vehicles that must pass by a daycare in route 1.

Engineering
1 answer:
Helga [31]3 years ago
3 0

Answer:

X1 = 2081.64

X2 = 523.91

X3 = 1394.45

Explanation:

See the attached pictures for detailed explanation.

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Water is flowing in a pipe. Which is the correct statement about the effect of an increase in the Reynolds number of the flow:
shepuryov [24]

Answer:

c.if the flow is laminar it could become turbulent.

Explanation:

The Reynolds number (Re) is a dimensionless quantity used to help predict flow patterns in different fluid flow situations. At low Reynolds numbers of below 2300 flows tend to be dominated by laminar, while at high Reynolds numbers above 4000, turbulence results from differences in the fluid's speed and direction. In between these values is the transition region of flow.

In practice, fluid flow is generally chaotic, and very small changes to shape and surface roughness of bounding surfaces can result in very different flows.

4 0
4 years ago
. A line shaft rotating at 200 r.p.m. is to transmit 20 kW. The allowable shear stress for the material of the shaft is 42 MPa.
lbvjy [14]

Answer:

diameter=53.4 mm to 55 mm

Explanation:

7 0
3 years ago
The Prince Company, Inc has 100 employees. In 2009, the employees worked a total of 350,000 hours annual and reported 145 injuri
Helga [31]

Answer:

For 145 injuries, IR=82.86 // For 79 injuries, IR=45.14

Explanation:

As stablished by OSHA, incident rate (IR) is used as a measurement to compare a company's safety against the national average. It is calculated by multiplying the number of recordable cases by 200.000 and then dividing the result by the number of total labor hours of the company.

For 145 injuries:

IR= (145*200.000)/350.000 = 82.86

For 79 injuries:

IR= (79*200.000)/350.000 = 45.14

3 0
3 years ago
PLZ HELP ME!! Can someone plz give me a summary on engineering in 3-5 sentences.
myrzilka [38]
Engineering is about building things, learning how to build things and it being fun
4 0
3 years ago
What is the most embarrassing thing that has happened to you its OK no judging
Sav [38]

Answer:

I fell infront of my crush lol

Explanation:

8 0
3 years ago
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