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The question asks us to find the minimum uncertainty in a bowling ball. In lecture Dr. Lavelle said when you are given a velocity + or - a certain value you use the entire range of values as your uncertainty. (i.e. the velocity is 1 m/s +/- 3 m/s, therefore your uncertainty is 6 m/s) The solution manual however just uses what I thought was 1/2 of the value of the uncertainty. It says that the ball's uncertainty is = 5m/s rather than 10, when the question thats that it is +/- 5 m/s, Which is the proper way to do it? Is the solution manual incorrect?
I believe it applies to the uncertainty in position. My TA said if we are given a question about an atom or a sphere, we need to pay attention to whether the given value is radius or diameter, and we need to use the diameter value for delta X.
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