A line is recorded as 472.90 m. long. It is measured with a 0.65 kg. tape which is 30.005 m. long at 200C under a 50 N pull supported at bot

A line is recorded as 472.90 m. long. It is measured with a 0.65 kg. tape which is 30.005 m. long at 200C under a 50 N pull supported at both ends. During measurement, the temperature is 50C and the tape is suspended under a 75 N. pull. The line is measured on 3% grade. E = 200 Gpa., cross-sectional area of tape is 3 mm2 and the coefficient of linear expansion is 0.0000116 m/0C.