a) A radioactive substance has a half-life of 250 years. Determine the age of the substance...

 

Transcribed Image Text:

a) A radioactive substance has a half-life of 250 years. Determine the age of the substance if it has retained 74% of its original amount. b) If a population increases at a rate of 1.5% per year, find its doubling period. c) 96.2 g of radioactive material is placed in a nuclear reactor. After 8 days only 35% remains. Determine the half-life of the substance. d) A car depreciates at 15% per year. After how many years will it be worth half of its original value? e) A bacterial culture starts with 1000 bacteria and triples after 5 hours. Find the doubling period and the amount of bacteria after 8 hours. a) A radioactive substance has a half-life of 250 years. Determine the age of the substance if it has retained 74% of its original amount. b) If a population increases at a rate of 1.5% per year, find its doubling period. c) 96.2 g of radioactive material is placed in a nuclear reactor. After 8 days only 35% remains. Determine the half-life of the substance. d) A car depreciates at 15% per year. After how many years will it be worth half of its original value? e) A bacterial culture starts with 1000 bacteria and triples after 5 hours. Find the doubling period and the amount of bacteria after 8 hours.

Answer rating: 100% (QA)

a A radioactive substance has a halflife of t 250 years it has retained 74 of its o... View the full answer