the hydraulic crane is used to lift the 1360-lblb load. determine the force in the hydraulic cylinder abab and the force in links acac and adad when the load is held in the position shown. (figure 1)

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?