(c) If the concrete is poured in a location such that its boundaries cannot move (that is, if there are no expansion joints at either end), then the concrete cannot expand or contract. This will generate a tensile stress in the concrete. Look up the range of Young's modulus values for concrete. Find the maximum tensile stress, a (in Pa or N/m ) generated in the concrete on the hottest and coldest days in Fresno. Explain the physical meaning of positive and negative results for the stress. (d) Look up the maximum tensile stress that concrete can tolerate. Determine if the concrete would crack on the hottest day or coldest days in Fresno. Find the maximum hot and cold temperatures that the concrete could tolerate. Determine if the concrete would crack on the hottest/coldest days in Fresno if there are no expansion joints