Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 44, Problem 7PLA
To determine
The activity
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Measurements
of a certain isotope tell you that the decay
rate decreases from 8343 decays/minute to 3070
decays/minute over a period of 3.50 days.
Part A
What is the half-life T₁/2 of this isotope?
Express your answer numerically, in days, to three
significant figures.
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T1/2
ΑΣΦ
?
days
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- Measurements of a certain isotope tell you that the decay rate decreases from 8322 decays/minute to 3162 decays/minute over a period of 4.50 days K ▼ Part A What is the half-life T1/2 of this isotope? Express your answer numerically, in days, to three significant figures. ► View Available Hint(s) —| ΑΣΦΑΛΟ T1/2 = Submit Provide Feedback t O ? daysarrow_forwardLungile, a radio-pharmacist based at iThemba LABS, measures the activity of a specific isotope with a Geiger counter and it shows 200 counts per minute at 12h00. At 15h00, Lungile notices a huge decrease in activity and the the Geiger counter now only records 25 counts per minute. NOW Use the counts/minute to determine the half-life of this radioactive isotope? FULLY EXPLAIN your choice under the RATIONALE section below! A. 3 hours B. 8 hours C. 1 hour D. 2 hoursarrow_forwardUranium-238 (Z=92) decays sequentially by emitting 2 alpha particles and a B- particle, What isotope will it eventually form? (Give the atomic and mass number showing your working).arrow_forward
- Neutron stars are so named because they are composed of neutrons and have a density the same as that of a nucleus. Part A Given that the nuclear density is 2.3 × 1017 kg/m³, find the radius of a neutron star whose mass is 0.58 that of the Sun. Express your answer using two significant figures. ΜΕ ΑΣΦ r = Submit Request Answer Return to Assignment Provide Feedback kmarrow_forwardFind question in Image.arrow_forwardComputer Typed please. NO HAND WRITTING.arrow_forward
- Please do e, f and g pleasearrow_forwardJ 3 Please make your solution clear and your handwriting very clear. Because if the line is not clear, I do not understand this solution and I will rate you very badly. Please solve this question in the best possible form in nuclear physics and in the best handwriting.arrow_forwardPart A Calculate the total binding energy, and the binding energy per nucleon, for Li. The masses of the atoms of Li and H are 7.016004 u and 1.007825 u, respectively. The mass of a neutron is 1.008665 u. Express your answers using four significant figures separated by a comma. Etotal, Eper nucleon = MeVarrow_forward
- The actinide series of elements are all radioactive. They all experience alpha decay. A sample with Z=103 undergoes alpha decay. How many protons does the daughter nucleus have? NOTE: You do NOT have to show your work for this problem.arrow_forwardplease solve it as soon as possiblearrow_forwardPlease write to text format Mercury K – electrons are found within energy of 83 keV. What is the energy of the converted K – electrons in the decay of Hg*– 198?arrow_forward
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