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only physics genius please.
calculate the torque in twisting a steel tube of length l=3m through an angle 2degree about its axis if the inside and outside diameters of the tube are 30mm and 50 mm.the answer is 0.5k N.m
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see the above image.
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saurabh444:
thank you very much ,you are really a physics genius.
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I think this question is higher than the secondary level education.
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