Mathematics, 29.06.2019 02:00 ruslffdr
By far the largest and most widespread use of americium-241 is as a component in household and industrial smoke detectors, where a small amount is used in an ionization chamber inside the detector. the half life of americium-241 is 432.2 years. if a smoke detector is buried in a land fill, how many years are required for the original amount of americium-241 to decay to less than 1% of the original amount? round your numerical answer to the nearest tenth of a year. 1,435.7 years 4,322 years 2,871.5 years 43,220 years
Answers: 1
Mathematics, 21.06.2019 15:30
Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?
Answers: 2
Mathematics, 21.06.2019 16:30
Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1
Answers: 1
Mathematics, 21.06.2019 20:30
Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error
Answers: 1
By far the largest and most widespread use of americium-241 is as a component in household and indus...
Chemistry, 26.08.2019 15:10
Geography, 26.08.2019 15:10
Mathematics, 26.08.2019 15:10
Chemistry, 26.08.2019 15:10
Chemistry, 26.08.2019 15:10
Chemistry, 26.08.2019 15:10
Mathematics, 26.08.2019 15:10
Mathematics, 26.08.2019 15:10
Mathematics, 26.08.2019 15:10
Mathematics, 26.08.2019 15:10
Geography, 26.08.2019 15:10
Chemistry, 26.08.2019 15:10