Explanation Given Info: The half-life of 15 O is 2 min and the time is 1 h . Write the equation of radioactive decay in terms of the number of nuclei. N = N 0 e − λ t (1) Here, N is the number of nuclei present after time t N 0 is the initial number of nuclei λ is the decay constant t is the time Write the expression for the fraction of original nuclei present after time t . N N 0 = e − λ t (2) Write the expression for the decay constant. λ = ln 2 T 1/2 Here, T 1/2 is the half-life Substitute 2 min for T 1/2 to find the decay constant of 15 O . λ = ln 2 2 min = ln 2 2 min × 60 s 1 min = 5.776 × 10 − 3 s -1 Substitute 5

Essential University Physics (3rd Edition)

3rd Edition

ISBN: 9780134202709

Author: Richard Wolfson

Publisher: PEARSON

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Radioactive decay

The emission of energy to produce ionizing radiation is known as radioactive decay. Alpha, beta particles, and gamma rays are examples of ionizing radiation that could be released. Radioactive decay happens in radionuclides, which are imbalanced atoms. T…

Artificial Radioactivity

The radioactivity can be simply referred to as particle emission from nuclei due to the nuclear instability. There are different types of radiation such as alpha, beta and gamma radiation. Along with these there are different types of decay as well.

Question

Chapter 38.2, Problem 38.2GI

To determine

The fraction of the original 15O remains undecayed after one hour.

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Chapter 38.1, Problem 38.1GI

Chapter 38.3, Problem 38.3GI

Chapter 38 Solutions

Essential University Physics (3rd Edition)

Ch. 38.1 - Prob. 38.1GI Ch. 38.2 - Prob. 38.2GI Ch. 38.3 - Prob. 38.3GI Ch. 38.4 - Prob. 38.4GI Ch. 38.5 - Prob. 38.5GI Ch. 38 - Prob. 1FTD Ch. 38 - Prob. 2FTD Ch. 38 - Prob. 3FTD Ch. 38 - Prob. 4FTD Ch. 38 - Prob. 5FTD

Ch. 38 - Why are iodine-131 and strontium-90 particularly...Ch. 38 - Prob. 7FTD Ch. 38 - Prob. 8FTD Ch. 38 - Prob. 9FTD Ch. 38 - Prob. 10FTD Ch. 38 - Prob. 11FTD Ch. 38 - Prob. 12FTD Ch. 38 - Prob. 13FTD Ch. 38 - Prob. 14FTD Ch. 38 - Explain the different approaches to the Lawson...Ch. 38 - Prob. 16FTD Ch. 38 - Three radon isotopes have 125, 134, and 136...Ch. 38 - Prob. 18E Ch. 38 - Prob. 19E Ch. 38 - Prob. 20E Ch. 38 - Prob. 21E Ch. 38 - How many half-lives will it take for the activity...Ch. 38 - Prob. 23E Ch. 38 - Prob. 24E Ch. 38 - Prob. 25E Ch. 38 - Prob. 26E Ch. 38 - Prob. 27E Ch. 38 - Prob. 28E Ch. 38 - Use Fig. 38.9 to estimate the mass defect in...Ch. 38 - Find the total binding energy of oxygen-16, given...Ch. 38 - Determine the nuclear mass of nickel-60, given...Ch. 38 - Prob. 32E Ch. 38 - Prob. 33E Ch. 38 - Prob. 34E Ch. 38 - Prob. 35E Ch. 38 - Prob. 36E Ch. 38 - Prob. 37E Ch. 38 - Prob. 38E Ch. 38 - Prob. 39E Ch. 38 - Prob. 40E Ch. 38 - Prob. 41E Ch. 38 - Prob. 42P Ch. 38 - Prob. 43P Ch. 38 - Prob. 44P Ch. 38 - Iron-56, with nuclear mass 55.9206 u, is among the...Ch. 38 - Prob. 46P Ch. 38 - As a geologist, youre assessing the feasibility of...Ch. 38 - Prob. 48P Ch. 38 - Prob. 49P Ch. 38 - Nitrogen-13 is a 9.97-min-half-lifc isotope used...Ch. 38 - Prob. 51P Ch. 38 - Prob. 52P Ch. 38 - Prob. 53P Ch. 38 - Prob. 54P Ch. 38 - The table below lists reported levels of...Ch. 38 - Prob. 56P Ch. 38 - Analysis of a Moon rock shows that 82% of its...Ch. 38 - Prob. 58P Ch. 38 - Prob. 59P Ch. 38 - Today, uranium-235 comprises only 0.72% of natural...Ch. 38 - Prob. 61P Ch. 38 - Prob. 62P Ch. 38 - Prob. 63P Ch. 38 - Prob. 64P Ch. 38 - Prob. 65P Ch. 38 - Prob. 66P Ch. 38 - Prob. 67P Ch. 38 - Prob. 68P Ch. 38 - Prob. 69P Ch. 38 - Prob. 70P Ch. 38 - Prob. 71P Ch. 38 - Prob. 72P Ch. 38 - Prob. 73P Ch. 38 - Prob. 74P Ch. 38 - Bismuth-209 and chromium-54 combine to form a...Ch. 38 - Prob. 76P Ch. 38 - Prob. 77P Ch. 38 - Prob. 78P Ch. 38 - Prob. 79P Ch. 38 - Prob. 80P Ch. 38 - Prob. 81P Ch. 38 - Prob. 82P Ch. 38 - Prob. 83P Ch. 38 - Prob. 84P Ch. 38 - Prob. 85P Ch. 38 - Prob. 86PP Ch. 38 - Prob. 87PP Ch. 38 - Prob. 88PP Ch. 38 - Prob. 89PP

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