User Account

All Pages

What would the percentage of thorium

Assignment Help Science
Reference no: EM132449870

1.) A human piece of pottery is dated at 42,250 years old by using carbon-14. How many half lives have passed since the pottery was made?

2.) What would the percentage of thorium- 232 (parent compound) be in a rock that was dated at 2.8 billion years?

3.) The concentration of the radioactive isotope potassium-40 in a rock sample is found to be 6.25%. What is the age of the rock?

4.) A rock found to contain 2.2 grams of uranium-232, a radioactive isotope. If the rock has undergone 2.75 half lives, what was the original amount of uranium-235 in the rock and how old is the rock?

5.) An igneous rock originally has 4 gram of uranium-238 in it. When dated, the rock only contains 2.4 grams. What are the parent and daughter concentrations (in percentages) and what is its age?

Reference no: EM132449870

Questions Cloud

Identify three security risks of open source software : Explain the Internet of Things. What are the advantages of using a data warehouse? Identify three security risks of open source software.
Power and conflict in organizations : Can a person without influence be a leader? Does having influence automatically make someone a leader? Have you ever engaged in impression management?
Discuss characteristics to effective corporate governance : Povide support for your response, citing the ways in which these characteristics usually lead to effective corporate governance
Fire prevention and suppression in buildings : There are several standards and guidelines that apply to fire prevention and suppression in buildings. OSHA has promulgated several standards
What would the percentage of thorium : A human piece of pottery is dated at 42,250 years old by using carbon-14. How many half lives have passed since the pottery was made?
What are the important components of the p2 audit process : Locate a success story from the literature (or on-line) where the P2 audit process was used and provide a summary of the results attained
State the name of the law and the date the law was passed : For this assignment, you will research and write an APA research paper about environmental policies, including the following:
Prepare a report summarizing the characteristics of metrics : Create a new worksheet in the database to compute gross revenues by month and region, as well as worldwide totals, for each product using the data
Controlling the different pollutant streams : List and discuss the options that we have available to us for controlling the different pollutant streams.

Reviews

Write a Review

Science Questions & Answers

  Journal of pharmaceutical sciences

This journal is a scientific publication of Indian Pharmaceutical Association and highlights various bright points of it.

  Optical fibres

This document discuss about the main attributes and characteristics of optical fibres.

  Micro organisms

This project report reveals the fact and proves a specific objective mentioned to be studied upon.

  Describing histology of an organ

The discussion of the technique should include a literature review on the evolution of the technique.

  Interpret the sensitivity of mammography

Calculate and interpret the sensitivity of mammography. Diagnostic test with Sensitivity 50%, Specificity 50% and prevalence 50%. Crude mortality rate. Damage caused by motor vehicle accidents.

  Discuss the role that science plays in your daily life

Role that science plays in your daily life and Integrity, Intensity, Innovation, and involvement in scientific field

  Prepare a flexible budget gator divers

Prepare a Flexible Budget Gator Divers is a company that provides diving services such as underwater ship repairs to clients in the Tampa Bay area.

  Neurological disorders

Designing a neuroprosthesis for the neurological disorders

  Complexity of cell surfaces

Lipid rafts provide another example of the complexity of cell surfaces in both their structural character and biologic functionality. Please explain the nature of these structures and their functionality.

  Exploratory activity on bird beaks

Describe how natural selection and evolution are demonstrated by this activity

  Spatial and temporal variation of heat content in the upper

In this study the temporal and spatial variation of heat content in the upper 70m layer of the Arabian Sea was for a period of 1991 to 2008 have been attempted.

  Earthquake databases

Earthquake Databases

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd