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Structure subjected to gravity loads where will be the shear force? What is y^4 minus y^3 plus 2y^2 +y minus1 divided by y^3 + 1? Whats y^4 -y^3+2y^2+y-1 divide y^3+1? Math problems in the details.? If 481 mL N2 was collected over water at 26.0 degrees Celsius and 745 torr, how many moles of N2 are present in this sample? Please help!?