Explain the half-life for the radioactive decay

Reference no: EM13156879

The half-life for the radioactive decay of [U]-238 is 4.5 billion years and is independent of initial concentration. Part A How long will it take for 20% of the [U]-238 atoms in a sample of [U]-238 to decay? part b If a sample of [U]-238 initially contained 1.9×10^18 atoms when the universe was formed 13.8 billion years ago, how many [U]-238 atoms will it contain today?

Reference no: EM13156879

Questions Cloud

Balance the nuances of the results lens : Can the Results Lens thinking harmonize or divide individuals in our community? How? What creative choices can be made to balance the nuances of the Results Lens?

What supply-side solutions might be advanced : Using ideas of consumer and producer surplus analyse this claim. Is there a case for price controls on housing?

Confidence interval for difference in two population means : Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are independent and that they have been randomly selected.

Expected shipping expense : Shipping expense is $9,000 for 8,000 pounds shipped and $11,250 for 11,000 pounds shipped. Assuming that this activity is within the relevant range, if the company ships 9,000 pounds, its expected shipping expense is closest to:

Explain the half-life for the radioactive decay : The half-life for the radioactive decay of [U]-238 is 4.5 billion years and is independent of initial concentration. Part A How long will it take for 20% of the [U]-238 atoms in a sample of [U]-238 to decay?

What is the eac for the optimal policy : Mytown uses an interest rate of 6%. What is the EAC for Mytown's policy? What is the EAC for the optimal policy? What is the optimal policy?

Advertising campaign cost in total : On December 31, the balance in the Prepaid Advertising account was $176,000. This is the remaining balance of a twelve-month advertising campaign purchased on August 31 in the current year. Assuming the cost is spread equally over each month how m..

Explain what was the ph of the gastric juice : he sample required 5.5 mL of 0.0019 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice?

Protecting physical structures and lives : Based on your knowledge, experiences, and the readings, compare protecting computers and digital information with protecting physical structures and lives (physical terrorism). Evaluate if one form of terrorism has more impact than the other?

User Account

All Pages