8. [-/1 Points] DETAILS SERCP9 8.P.013.WI. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following mass distribution where the x-and y-coordinates are given in meters: 5.0 kg at (0.0, 0.0) m, 3.1 kg at (0.0, 4.2) m, and 4.0 kg at (3.6, 0.0) m. Where should a fourth object of 7.5 kg be placed so that the center of gravity of the four-object arrangement will be at (0.0, 0.0) m? X = m y = m 9. [-/1 Points] DETAILS SERCP9 8.P.020. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 190 N and is 3.1 m long. What is the tension in each rope when the 706-N worker stands 2.10 m from one end? smaller tension larger tension 10. [-/1 Points] DETAILS SERCP9 8.P.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER One end of a uniform 4.10-m-long rod of weight w is supported by a cable at an angle of 0 = 370 with the rod. The other end rests against a wall, where it is held by friction (see figure). The coefficient of static friction between the wall and the rod is us = 0.475. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A. m