A compound frame is subjected to a couple moment and a distr…

A compound frame is subjected to a couple moment and a distributed load, as shown in the figure. A spring connects points E and F. When the system is in equilibrium, the stretch of the spring is equal to s = 2in. Calculate the reactions at the supports. Note that there is a fixed support at D and a roller support at A. Segment BCD is continuous. You must show all your work and include FBD(s) to receive full points.    

Fred and Wilma want to see how much methane is produced by d…

Fred and Wilma want to see how much methane is produced by decomposing paper and food scraps, the two most abundant types of waste in the municipal solid waste stream. To do this experiment at home, they have collected several types of food and paper waste, 4 empty plastic bottles, soil, sand, a ruler, a funnel, a spoon, a bottle of distilled water, balloons, and aluminum foil.  Write a properly formatted hypothesis for this experiment.