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

Author Question: A certain radioactive isotope has a half-life of 14 years. If 19 grams of the isotope are left after ... (Read 159 times)

abern

  • Hero Member
  • *****
  • Posts: 533
on: May 26, 2021

Question 1

A certain radioactive isotope decays from 70 grams to 45 grams in 27 years. What is the half-life of the isotope?
◦ 36.25 years
◦ 48.31 years
◦ 50.02 years
◦ 40.16 years
◦ 42.36 years

Question 2

A certain radioactive isotope has a half-life of 14 years. If 19 grams of the isotope are left after 5 years, how much was present at the beginning?
◦ 24.34 grams
◦ 26.55 grams
◦ 27.21 grams
◦ 34.75 grams
◦ 22.10 grams
Calculus: A Complete Course ¦ Adams, Essex ¦ 8th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by abern on May 26, 2021

randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: May 26, 2021
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 25% of students answer this correctly


abern

  • Member
  • Posts: 533
Reply 2 on: May 26, 2021
Great answer, keep it coming :)

xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu
The gender roles that we learn during childhood become part of our basic orientations to life. ... The gender roles that we learn during childhood become part of our basic orientations to life. ...
On the left is one of Jennifer Lopez’s homes, this one in Miami Beach. She also has a home in ... On the left is one of Jennifer Lopez’s homes, this one in Miami Beach. She also has a home in ...
A View of the Left Side of the Brain A View of the Left Side of the Brain
A boiling-liquid, expanding-vapor explosion (BLEVE). The burning propane cylinder on the left is not ... A boiling-liquid, expanding-vapor explosion (BLEVE). The burning propane cylinder on the left is not ...
Left Atrium Left Atrium
Video: Bone processes - resorption and deposition, remodeling and response to stress in adult bones

For a complete list of videos, visit our video library