Select the tensile reinforcing needed for the T beams if the reinforced concrete is assumed to weigh 150 lb/ft3 and a live floor load of 140 lb/ft2 is to be supported. Assume 40-ft simple spans, fy = 60,000 psi, and f ? c = 3000 psi.

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !