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The system of the previous problem starts from rest with no slack in the cable. What value of the tension T will result in an initial block acceleration of 0.8 m/s2 to the right?
If during the droughts 25% of water required is supplied from a deep well field, how many deep wells with 30 liter/second discharge are required if each well supplies water for 12 hours per day.
A barge has the trapeziodal shape and is 22 m long into the paper. If the total weight of barge and cargo is 350 tons, what is the draft H of the barge when floating in sea water
A 2000 ft vertical curve connects to a +3% grade to a -5% grade. If the vertical tangents intersect at station 52+60.55 and elevation 877.62 ft, calculate the elavations at the VPC, VPT, high point and station 54+00.
A bicyclist travels on a level path. The frontal area of the cyclist and the bicycle is 2.3 ft^2 and the drag coeffcient is 1.2. The specific weight of the air is .075lb/ft^3. How much horsepower (1hp=550ft*lb/s) does the cyclist need to produce to m..
A factory emits 70 g/s of NO2 from an effective stack height of 40 m. The wind speed is 5.5 m/s and it's a cloudy night. There is an atmospheric inversion at an elevation of 100 m.
A coal-fired power plant with an scrubber has an overall removal efficiency of 85%. But rather than treat the entire stream to 85% removal
A horizontal curve is being designed through mountainous terrain for a four-lane road with lanes 10 ft. wide. The central angle is known to be 40 degrees, the tangent distance is 520 ft., and the stationing of the tangent intersection (PI) is 2600..
Water is used in a heat exchange to cool 5 kg/s of air from 400 C to 200 C. Calculate (a) the minimum mass flux (kg/s) of the water and (b) the quantity of heat transferred (MJ) to the water each second.
A flow of 0.1 cum/s flows down in a rectangular channel of width of 0.6m and having and adjustable bottom slope. If chezys constant C is 56, determine the bottom slope necessary for uniform flow with a depth of flow 0.3m. Also find the conveyance of ..
1.How can the water pressure in a pipe be measured simply 2.What force causes the water pressure to fall as it flows along a pipe 3.How do you think the pressure drop will change when each of the three variables changes
Light-Voice Controlling System. We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems
The given data show the result of a model known as stopping sight distance, used by civil engineers to design roadways speed(mph) stopping sight distance(ft)
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