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Chapter 1: Q8. (page 18)
Multiplyby, taking into account significant figures.
The correct answer for multiplication is 2.1 m.
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If you walked north along one line of longitude until you had changed the latitude by 1 minute of arc (there are 60 minutes per degree), how far would you have walked (in miles)? (This distance is called a nautical mile.)
Computer chips (Fig. 1–17) 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 number of liters of water a human drinks in a lifetime.
(Note: Remember that for rough estimates, only round numbers are needed both as input to calculations and as final results.)
Hold a pencil in front of your eyes at a position where its blunt end just blocks out the moon (see the figure below). Make the appropriate measurements to estimate the diameter of the moon, given that the earth-to--moon distance is.
A storm dumps 1.0 cm of rain on a city that is 6 km wide and 8 km long in a 2 h period. How many metric tons (1 metric ton =) of water fell on the city? (of water has a mass of.) How many gallons of water was this?
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