The solid steel shaft AC has a diameter of 25 mm and is supported by smooth bearings at D and E. It is coupled to a motor at C ,
which delivers 3 kW of power to the shaft while it is turning at 50rev/s. Gears A and B remove 1 kW and 2 kW, respectively. The shaft is free to turn in its support bearings D and E.
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If the radius of a circle of area A and circumference C is doubled, <u>the new circumference</u> of the circle, in terms of C, <u>will be</u> equal to 2C.
The area (A) of a circle is given by:
(1)
And a circumference (C) is:
(2)
Where:
r: is the radius
<u>If the radius</u> of a circle and circumference <u>is doubled</u>, the new circumference of the circle is:
Therefore, the new circumference of the circle in terms of C is equal to 2C.
To find more about circumference, go here: brainly.com/question/4268218?referrer=searchResults
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