4-7 Practice
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Last updated over 2 years ago
11 questions
1
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Radium-226, which has a half-life of 1600 years and a starting amount of 12g.
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Radium-226, which has a half-life of 1600 years and a starting amount of 12g.
1
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Polonium-208, which has a half-life of 2.9 years and a starting amount of 300kg.
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Polonium-208, which has a half-life of 2.9 years and a starting amount of 300kg.
1
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Titanium-44, which has a half-life of 63 years and a starting amount of 44 oz.
Using the formula N(t) = N0e-kt as a model, write a function to model the decay of Titanium-44, which has a half-life of 63 years and a starting amount of 44 oz.
1
Solve the equation from the example (Plutonium-239) for k. Round to 6 decimal places.
Solve the equation from the example (Plutonium-239) for k. Round to 6 decimal places.
1
Solve the equation from #1 (Radium-226) for k. Round to 6 decimal places.
Solve the equation from #1 (Radium-226) for k. Round to 6 decimal places.
1
Solve the equation from #2 (Polonium-208) for k. Round to 6 decimal places.
Solve the equation from #2 (Polonium-208) for k. Round to 6 decimal places.
1
Solve the equation from #3 (Titanium-44) for k. Round to 6 decimal places.
Solve the equation from #3 (Titanium-44) for k. Round to 6 decimal places.
1
Use the decay constant for Plutonium-239 (#4 above) to find out how long, to the nearest year, it would take a 70 mg sample to decay to 10 mg.
Use the decay constant for Plutonium-239 (#4 above) to find out how long, to the nearest year, it would take a 70 mg sample to decay to 10 mg.
1
Use the decay constant for Radium-226 (#5 above) to find out how long, to the nearest year, it would take a 12 g sample to decay to 8 g.
Use the decay constant for Radium-226 (#5 above) to find out how long, to the nearest year, it would take a 12 g sample to decay to 8 g.
1
Use the decay constant for Polonium-208 (#6 above) to find out how long, to the nearest year, it would take a 300 kg sample to decay to 100 kg.
Use the decay constant for Polonium-208 (#6 above) to find out how long, to the nearest year, it would take a 300 kg sample to decay to 100 kg.
1
Use the decay constant for Titanium-44 (#7 above) to find out how long, to the nearest year, it would take a 44 oz. sample to decay to 5 oz.
Use the decay constant for Titanium-44 (#7 above) to find out how long, to the nearest year, it would take a 44 oz. sample to decay to 5 oz.