1. Consider these three patterns of water waves: A B C a. Describe the similarities and differences of the three patterns of water waves. b. Experiment to make similar patterns, then explain how you can use the simulation to make each.

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.