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26 Sep 2019

If time is measured along the horizontal axis or X-axis then what is measured along the Y-axis in a business cycle?

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Bunny Greenfelder
Bunny GreenfelderLv2
28 Sep 2019
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Related questions

A uniform rod is rotating on a horizontal plane about a vertical axis through one end with a constant angular velocity ω0. Due to internal shear forces, the rod breaks at the mid-point of its length, and the part with the fixed axis has an angular velocity 1.5ω0 in the same sense. Determine the angular velocity of the other half.

During a flow of 500 liters, the gage pressure is 68 kPa in the horizontal 300 mm supply line of a water turbine. A 41 kPa vacuum is measured at a 450 mm section of draft tube 2 m below the turbine. Assuming an efficiency of 85%,

a. Compute the total head extracted by the turbine.

b. Compute the output horsepower of the turbine.

c. Compute the input horsepower of the turbine.

  1. Only source of BOD in a river is untreated wastes that are being discharge from a food processing plant. The characteristics of untreated waste is not reported for the environmental protection agency of the town . To identify the waste water property from the processing plant the authority measured the DO of the river at 10km and 40km away from the plant and found 5mg/l and 2.5mg/l respectively. The average flow rate of the river is 0.25m/s and average depth is 4.5m with bed activity coefficient of 0.2.assume saturation DO 10mg/l

Parameter            river     waste water  

Flow,m3/s         0.7            0.23

BOD @ 18°C        2.5           N/A

DO, mg /l             8             N/A

Temperature       20            20

K @ 20°c             -                  0.23

a. What is the DO and BOD of the untreated waste form the processing plant? 

b. What is the critical DO and where downstream does it occur?

c. If the state requirement for minimum DO is 2mg/l is assimilative of the river restricted or not ?

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