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- The radioactive glucose used in PET scans has a half-life of approximately 2 hours. How much of the original radioisotope remains 8 hours after being injected in a patient?question 4 pleaseWhat experimental parameters help protect those who work regularly with radioactive materials and why? Radioactive decay is an inherently random process. In order to make our radiation counting measurements better, what could you do to increase the precision of your measurements? If the radioactive samples are not brand new, then how does the relative age of the sample affect your measurements?
- Give three (3) examples of uses of Radioactivity (for example, in archaeology, engineering, nuclear power plants, etc.), explain them.If the half-life of a radioisotope is 2 days, after how many days is the quantity reduced to 12.5% of its original amount?A eFundi : NPHY 121 1-1 P 2021 :T X b A eFundi : NPHY 121 1-1 P 2021 G radioactive decay of a substance X O Formula_Constants_Test 4_2021.p x A efundi.nwu.ac.za/portal/site/c923f09f-d964-4fd3-9120-8f790f64f466/tool/61ce5eed-ec3d-4e24-a7be-a67fc9570cfe/jsf/delivery/deliverAssessment#p1q2 Radioactive nuclide, 90Sr, has a half-life of 30 years. What percent of a sample of 90Sr will remain after 60 years? Radioaktiewe uklied, 9"Sr, het 'n halfleeftyd van 30 jaar. Watter persentasie van 'n monster van 90S sal na 60 jaar oor wees? A. 0% B. 75% C. 25% D. 50% Reset Selection us Next Save 14:06 P Type here to search O 23°C Light rain 2021/11/22
- Prehistoric cave paintings were discovered in a cave in France. The paint contained 13% of the original carbon-14. The half-life of carbon-14 is 5730 years. Estimate the age of the paintings. The paintings are about years old. (Round to the nearest integer.) ts ontents uccess Success edia Library ase Options se Tools Enter your answer in the answer box and then click Check Answer. All parts showing Clear All Check Answer W T el45 MacBook Air DII DD 80 888 F11 F10 F8 F9 F6 F7 F5 F3 F4 |三A radiopharmaceutical is labeled with an activity of 480 mCi on April 1 at 6:00am. What is the activity of the formulation in mCi at 6:00am on April 10? The half life of the radioisotope is 8.10 days. Report to the nearest tenth, number only. λ=2.303/t (logN0/N)