7. Compute the normal tension which will be applied to a tape supported over two supports to make the tape equal to its minimal length when supported only at the end points. The steel tape is 30-m long and weighs 1.5kg when supported throughout its length under a standard pull of 6kg with the modulus of elasticity of 2x10 kg/cm? and area of 0.05 cm?. 8. A student was asked to make a 345.43-m long line using a 25-m tape that is 0.0021 m long. What is the required measurement? 9. A steel tape with a coefficient of linear expansion of 0.0000116/C is known to be 50m long at 20C. The tape was used to measure a line which was found to be 532.28 meters long when the temperature was 35C. Determine the following: .) Temperature correction per tape length .) Temperature correction for the measured line. .) Correct length of the line. [o N o] 10. This sides of a square lot having an area of 2.25 hectares were measured using a 100 m. tape that was 0.04 m. too short. Compute the error in the area in sg.m