A surveyor uses a steel measuring tape that is exactly 50.000 m long at a temperature of 20∘∘C. The markings on the tape are calibrated for this temperature. (a) What is the length of the tape when the temperature is 35∘∘C? (b) When it is 35∘∘C, the surveyor uses the tape to measure a distance. The value that she reads off the tape is 35.794 m. What is the actual distance? α=1.2×10−5/∘C