Hey can anybody tell me why my eyes water and burn when i go to stores i thoight that it was the cold air conditioner in stores that caused that but today i msde my house really cold using ac and my eyes didnt burn or water as much so im thinking might it be an allergy to the air conditioner in the im really confused

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm