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Chapter 1: Q9. (page 18)
What, approximately, is the percent uncertainty for a measurement given as?
The correct answer of percent uncertainty is 0.6%.
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Computer chips (Fig. 1鈥�17) are etched on circular silicon wafers of thickness 0.300 mm that are sliced from a solid cylindrical silicon crystal of length 25 cm. If each wafer can hold 400 chips, what is the maximum number of chips that can be produced from one entire cylinder?
FIGURE 1-17 Problem 41. The wafer held by the hand is shown below, enlarged and illuminated by colored light. Visible are rows of integrated circuits (chips).
Estimate the order of magnitude (power of 10) of (a) 2800, (b)(c) 0.0076, and (d)
Estimate the number of jelly beans in the jar of Fig. 1鈥�18.
FIGURE 1-18 Problem 45. Estimate the number of jelly beans in the jar.
Jim stands beside a river and wonders how wide it is. He spots a large rock on the bank directly across from him. He then walks 65 strides upstream and judges that the angle between him and the rock, which he can still see, is atdownstream (See below figure). Jim measures his stride to be about 0.8 m long. Estimate the width of the river.
Express the sine ofwith the correct number of significant figures.
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