What are the parent and daughter concentrations
An igneous rock originally has 3 grams of uranium-238 in it. When dated , the rock only contains 1.8 grams. What are the parent and daughter concentrations ( in percentages) and what is its age?
Expected delivery within 24 Hours
The concentration of the radioactive isotope potassium-40 in a rock sample is found to be 3.125%. What is the age of the rock?
A curve with a 120 m radius on a level road is banked at the correct angle for a speed of 20 {rm m/s}.If an automobile rounds this curve at 30 {rm m/s}, what is the minimum coefficient of static friction between tires and road needed to prevent sk
A rock is found to contain 3.2 grams of uranium-235, 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?
In a photo like the Hubble Deep Field (Figure 15.1 in your textbook), we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives?
Briefly explain how three aspects of the demographic transition model account for Europe's transformation into a destination region for migrants from North Africa between 1960 and 2000.
What major problem are the auditor likely to encounter in conducting the investigation and writing the report?
On 200g of an ash,3.60mg of mercury was deposited on the ash. How many atoms of mercury are these?
Which is more important- the formulation of a strategy or its implementation as well As the tribulations associated with your choice?
1935692
Questions Asked
3,689
Active Tutors
1421787
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
For this discussion, post something to the discussion board related to ethics and cultural competence in program evaluation or your Week readings.
There are few issues that have brought as much controversy in contemporary society as abortion. There have been debates and camps that have formed around
To explain a child growth and development theory and describe parenting techniques following a chosen theory's perspective.
Discuss the differences between a null hypothesis and an alternative hypothesis. In doing so, elaborate on why typically qualitative method studies
Reflect on the contemporary leadership models and theories explored in this unit. Which of these models and theories exist in your current organization?
Problem: For this assignment, you will select a word, poem, TV show, song, or book that you feel defines you at the moment.
Identify the cultures and societies (plural) of the India. Evaluate India's development from British colony to the world's most populous democracy.