Concept explainers
(a)
More precise number from the measurement.
(a)
Answer to Problem 69A
The speed measurement by the first scientist is more precise.
Explanation of Solution
Given Info:
The speed measurement by the first scientist is,
The speed measurement by the second scientist is,
Calculation:
The precision is the measure how close the measurement is to exact reading. The measurement of the speed by the first scientist is more precise because it can be measured up to
Thus, the speed measurement by the first scientist is more precise.
(b)
The more accurate speed from the both measurements.
(b)
Answer to Problem 69A
The speed measurement of the second scientist is more accurate and the value of accurate measurement is
Explanation of Solution
Calculation:
The accuracy is the closeness of the measurement with the standard value of the measurement. The standard value of the
Thus, the speed measurement of the second scientist is more accurate and the value of accurate measurement is
Chapter 1 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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