Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 46, Problem 30SP
To determine
The dose, in
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In a diagnostic x-ray procedure, 5.25×1010 photons are absorbed by tissue with a mass of 0.590 kg. The x-ray wavelength is 2.00×10−2 nm.
A) What is the total energy absorbed by the tissue?
Express your answer in millijoules.
B) What is the equivalent dose in rem?
Express your answer in rem.
An alpha particle is accelerated from rest through a potential difference of 35 MV.
What is the kinetic energy of the alpha particle, in MeV?
Answer:
decay in the discharging process to half of its maximum (V = Vo/2). This time is the half-life: t1= t1/2.
20.82 ms, 3.977v
T1= 1.4 m/s
Measure the time it takes for the voltage to decay to one-quarter (V = Vo/4 = (Vo/2)2) of its maximum. This is two half-lives: t2 = 2t1/2. Then divide this time by two to find the half-life (t1/2 = t2/2)
20.2-24.00 = 3.2
T2 = 3.2/2 = 1.6m/s
Measure the time it takes for the voltage to grow to one-eighth (V = Vo/8 = (Vo/2)3) of its This is three half-lives, t3 = 3t1/2. Then divide this time by three to find the half-life, t1/2 = t3/3.
20.8 – 22.28= 1.48m/s
T3= 1.48/3 = 0.49 m/s
Take the average of the three measured values of the half-life. Estimate the precision of the measurement and state it as {half-life ± precision}…
Chapter 46 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
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