45tx.t Tutori Onli A Student MavMail He a Mechanic ACC Portal Fedex Express Salari HW 17 Begin Date: 7/3/2018 12:01:00 AM- Due Date: 7/8/2018 11:59:00 PM End Date: 7/9/2018 11:59:00 PM (2006) Problem 3: Railroad tracks are made from segments-99 m long at To-20° C. when constructed the engineers leave gaps between each segment of width / to allow for thermal expansion. The coefficient of liner expansion is a - 12 x 106 ol and engineers design the tracks to withstand temperatures of Te- 39.5 degrees. 33% Part (a) Input an expression for the minimum gap distance the engineers must leave for a track rated at temperature Te O 33% Part (b) What is the minimum gap distance in m eters? 33% Part (c) Suppose the engineers forgot to add the gaps at the beginning of 15 segments. How much longer in meters, would the track be at Grade Summary Deductions Potential 96% tan sin) cotan asinacos atan) acotansinh0 coso Attempts remaining: S (2% per attempt) detailed view . De I give up! The total change in length is 15x the change of one segment 11:33AM /7/2018 2 MYTECH 1844 662 4139 ^ -