T1a8p - Assignment 8 Problems(Fall Term Physics 102 12 Consider the following mass distribution where the xy coordinates are given in meters 5.0 kg

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12. Consider the following mass distribution where the xy coordinates are given in meters: 5.0 kg at (0.0, 0.0) m, 3.0 kg at (0.0, 4.0) m, and 4.0 kg at (3.0, 0.0) m. Where should a fourth object of 8.0 kg be placed so the center of gravity of the four- object arrangement will be at (0.0, 0.0) m? ( -1.5m ,-1.5m) 8. A water molecule consists of an oxygen atom with two hydrogen atoms bound to it as shown in Figure P8.8. The bonds are 0.100 nm in length and the angle between the two bonds is 106°. Use the xy axes shown and determine the location of the center of gravity of the molecule. Take the mass of an oxygen atom to be 16 times the mass of a hydrogen atom. x cg = 6.69 X 10 -3 nm, y cg = 0.0 nm FIGURE P8.8 18. A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3.00 m long. What is the tension in each rope when the 700-N worker stands 1.00 m from one end? T
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This note was uploaded on 01/15/2011 for the course PHYS 102 taught by Professor Vandenberg during the Fall '08 term at University of Victoria.

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T1a8p - Assignment 8 Problems(Fall Term Physics 102 12 Consider the following mass distribution where the xy coordinates are given in meters 5.0 kg

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