Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 9, Problem 9.4P
(a)
To determine
The net count rate and its standard deviation.
(b)
To determine
The precision of the measurement, expressed as %
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The results of the analysis of a metal alloy were reported in terms of percent Cu (%Cu). The values
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SOLUTION:
(a) A person's blood pressure is measured to be 104 ± 2 mm Hg. What is its percent uncertainty? (Note that percent uncertainties should be reported to two significant figures.) %
(b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm Hg? (Note that uncertainties should be reported to one significant figure.). mm Hg
The mass of a substance, which follows a continuous exponential growth model, is being studied in a lab. The doubling time for this substance was observed to
be 18 hours. There were 95.1 mg of the substance present at the beginning of the study.
(a) Let i be the time (in hours) since the beginning of the study, and let
y be the amount of the substance at time 1.
Write a formula relating y to t.
Use exact expressions to fill in the missing parts of the formula.
Do not use approximations.
アミ
(b) How much will be present in 16 hours?
Do not round any intermediate computations, and round your
answer to the nearest tenth,
mg
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Chapter 9 Solutions
Introduction To Health Physics
Ch. 9 - Prob. 9.1PCh. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - Prob. 9.4PCh. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - Prob. 9.9PCh. 9 - Prob. 9.10P
Ch. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - Prob. 9.13PCh. 9 - A counting system has a background of 360 counts...Ch. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Prob. 9.28PCh. 9 - Prob. 9.29PCh. 9 - Prob. 9.31PCh. 9 - Prob. 9.33PCh. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Prob. 9.38PCh. 9 - Prob. 9.39PCh. 9 - Prob. 9.44P
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