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Trying to find out what is difference between solar battery controller and 12v dc wind generator controller? How do they built bridges in the ocean? When the sea floor is sand and the current is so strong? Can someone help me to prove this equation? Pleaseeeee. #mathematics #pde? Draw a stress strain curve for Polypropylene which has a E = 3 GPa, TS = 35 MPa and ductility of 700 el? What does the distance between the blood drops tell a forensics scientist??