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

Author Question: A sample of wood from an Egyptian mummy case gives a count of 7.0 cpm/gC (counts per minute per gram ... (Read 55 times)

jasdeep_brar

  • Hero Member
  • *****
  • Posts: 569
on: Mar 21, 2021

Question 1

A radioactive sample has an initial activity of 2.00 × 106 cpm (counts per minute), and after 4.0 days, its activity is 9.0 × 105 cpm. What is its activity after 31 days?

◦ 8.3 cpm
◦ 4.1 × 103 cpm
◦ 4.9 × 102 cpm
◦ 1.0 × 10–9 cpm
◦ None of these are correct.

Question 2

A sample of wood from an Egyptian mummy case gives a count of 7.0 cpm/gC (counts per minute per gram of carbon). How old is the wood? (The initial decay rate of is 15.3 cpm/g C, and its half-life is 5730 years.)

◦ 3233 yr
◦ 8965 yr
◦ 6465 yr
◦ 7515 yr
◦ None of these are correct.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by jasdeep_brar on Mar 21, 2021

owenfalvey

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Mar 21, 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


jasdeep_brar

  • Member
  • Posts: 569
Reply 2 on: Mar 21, 2021
YES! Correct, THANKS for helping me on my review

jordangronback

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Amphibian development in the wood frog (Rana sylvatica) Amphibian development in the wood frog (Rana sylvatica)
The WISC-IV: Sample Items The WISC-IV: Sample Items
A typical output driver. In this case, the PCM applies voltage to the fuel pump relay coil to ... A typical output driver. In this case, the PCM applies voltage to the fuel pump relay coil to ...
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
What Does 100 Calories Look Like? Every calorie counts! What Does 100 Calories Look Like? Every calorie counts!
Video: Stroke volume - preload, sarcomere length and Frank -Starling law

For a complete list of videos, visit our video library