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Radioisotopes are used in a variety of manufacturing and testing techniques. Wear measurements can be made using the following method. An automobile engine is produced using piston rings with a total mass of 100 g, which includes 9.4 mCi of 5ºFE whose half-life is 45 days. The engine is test-run for 1500 hours, after which the oil is drained and its activity is measured. If the activity of the engine oil is 3.72 x 103 decays/s. (b) What would be the activity in the piston after 0.0802 grams has been worn off the piston?

Radioisotopes are used in a variety of manufacturing and testing techniques. Wear measurements can be made using the following method. An automobile engine is produced using piston rings with a total mass of 100 g, which includes 9.4 mCi of 5ºFE whose half-life is 45 days. The engine is test-run for 1500 hours, after which the oil is drained and its activity is measured. If the activity of the engine oil is 3.72 x 103 decays/s. (b) What would be the activity in the piston after 0.0802 grams has been worn off the piston?

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Please answer #b, #2, and #3
2. Draw a graph that shows the radioactivity of the oil as a function of time. This graph should have decays per second on the vertical axis and days on the horizontal axis. The horizontal range of the graph needs to be 0 to 1000 days. 3. Lookup what type of decay 59F undergoes and report it here.
Transcribed Image Text:2. Draw a graph that shows the radioactivity of the oil as a function of time. This graph should have decays per second on the vertical axis and days on the horizontal axis. The horizontal range of the graph needs to be 0 to 1000 days. 3. Lookup what type of decay 59F undergoes and report it here.
Radioisotopes are used in a variety of manufacturing and testing techniques. Wear measurements can be made using the following method. An automobile engine is produced using piston rings with a total mass of 100 g, which includes 9.4 mCi of 5°Fe whose half-life is 45 days. The engine is test-run for 1500 hours, after which the oil is drained and its activity is measured. If the activity of the engine oil is 3.72 × 103 decays/s. (b) What would be the activity in the piston after 0.0802 grams has been worn off the piston?
Transcribed Image Text:Radioisotopes are used in a variety of manufacturing and testing techniques. Wear measurements can be made using the following method. An automobile engine is produced using piston rings with a total mass of 100 g, which includes 9.4 mCi of 5°Fe whose half-life is 45 days. The engine is test-run for 1500 hours, after which the oil is drained and its activity is measured. If the activity of the engine oil is 3.72 × 103 decays/s. (b) What would be the activity in the piston after 0.0802 grams has been worn off the piston?
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