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Brums [2.3K]
2 years ago
12

Two identical 3 in. major-diameter power screws (single-threaded) with modified square threads are used to raise and lower a 50-

ton sluice gate of a dam. Quality of construction and maintenance (including lubrication) are good, resulting in an estimated friction coefficient of only 0.1 for the screw. Collar friction can be neglected, as ball thrust bearings are used. Assuming that, because of gate friction, each screw must provide a lifting force of 26 tons, what power is required to drive each screw when the gate is being raised at the rate of 3 ft/min

Engineering
1 answer:
sp2606 [1]2 years ago
6 0

Answer:

Check the explanation

Explanation:

Kindly check the attached images below to see the step by step explanation to the question above.

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1. A 260 ft (79.25 m) length of size 4 AWG uncoated copper wire operating at a tem-
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A 260 ft (79.25m) length of size 4 AWG uncoated copper wire operating at a temperature of 75°c has a resistance of 0.0792 ohm.

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