A 100ft steel tape measure correctly when supported


A 100ft steel tape measure correctly when supported throughout its length under a tension of 1- lb and at a temperature of 72F.It is used on the field at a tension of 18 lb and supported at the two ends only. The temperature throughout the measurement is 84F. The measured length is 748.25 ft (the tape is suspended between the 48ft mark and zero end for the last measurement). the tape weighs 2.00 lb and has a cross sectional area 0.0060 in^(2). assuming that E=28,000,000 psi for steel, what is the actual length of the line?

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Civil Engineering: A 100ft steel tape measure correctly when supported
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