week2 (dragged) 25

week2 (dragged) 25 - other 4 SIMPLIFY Do not plug in...

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August 12, 2010 University Physics, Chapter 22 16 Problem Solving Strategy 1. THINK Read the problem carefully. Ask yourself what quantities are known, what quantities might be useful but are unknown, and what quantities are asked for in the solution. 2. SKETCH Make a sketch of the physical situation to help you visualize the problem. 3. RESEARCH Write down the physical principles or laws that apply to this problem. Use equations representing these principles that connect the known and unknown quantities to each
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Unformatted text preview: other. 4. SIMPLIFY Do not plug in numbers yet! Instead, simplify your result algebraically as much as possible. 5. CALCULATE Put in the numbers with units and calculate your answer. 6. ROUND Look at the number of significant figures that you want to quote for your result. 7. DOUBLE-CHECK Step back and look at the result. Judge for yourself if the answer (both the number and the units) seems realistic. Thursday, September 2, 2010...
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