This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The half-life of carbon-14 is about 6000 years. Assume that a sample of charcoal formed by burning ... (Read 46 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Feb 28, 2020

Question 1

When a rock first crystallizes it has unstable isotopes but as of yet no daughter products. After three half-lives, how much total mass has been lost due to decay?
◦ seven-eighths
◦ two-thirds
◦ one-half
◦ none

Question 2

The half-life of carbon-14 is about 6000 years. Assume that a sample of charcoal formed by burning of living wood 15,000 years ago. How much of the original carbon-14 would remain today?
◦ between one-fourth and one-eighth
◦ between one-half and one-fourth
◦ more than one-half
◦ between one-half and one-third
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by bobbie on Feb 28, 2020

bpool94

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


bobbie

  • Member
  • Posts: 592
Reply 2 on: Feb 28, 2020
Great answer, keep it coming :)

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Synthesis of the active hormone formed from vitamin D or its precursor in skin. Synthesis of the active hormone formed from vitamin D or its precursor in skin.
Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for
A blood smear. The smear reveals representative cells from each formed element group: red blood cell A blood smear. The smear reveals representative cells from each formed element group: red blood cell
Siblings report on what life events triggered changes in their relationships with each other, how ... Siblings report on what life events triggered changes in their relationships with each other, how ...
A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ... A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ...
(A) A brisk half-moon stroke is an efficient technique to use with the body brush or exfoliation ... (A) A brisk half-moon stroke is an efficient technique to use with the body brush or exfoliation ...
Video: Stimulus (introduction)

For a complete list of videos, visit our video library