Question
Asked Nov 18, 2019
19 views

An igneous rock contains a radioactive Isotope that has a half life of 10 million years. Careful analysis shows that only one quarter of the original concentration of the parent isotope is left. How old is the igneous rock ?

check_circle

Expert Answer

star
star
star
star
star
1 Rating

Half life means the time taken by the sample to reach its half the mass of parent . in this case the half life is 10 milion years to become one half of the parent. this half again radiates and will take again 10 mili...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A mass of 0.45 kg is attached to a hanging spring, stretching it to a length of 0.444 m. When a mass...

A: Weight of mass is equal to the applied force on spring.

question_answer

Q: The figure above shows the potential energy of a particle. What is the force on the particle at x = ...

A: The relation between the force and potential energy is given by,The slope of the diagram gives the x...

question_answer

Q: If a converging lens forms a real, inverted image 14.0 cm to the right of the lens when the object i...

A: Given,

question_answer

Q: For this kind of word problem, when do I know there is final and initial kinetic and gravitational e...

A: To know the values like initial kinetic energy or the gravitational potential energy.Analyse the mot...

question_answer

Q: During a spacewalk, a 118 kg astronaut (including her spacesuit) is at rest and holding a 3.5 kg wre...

A: Consider the mass of astronaut be m1, the mass of the wrench be m2, the initial speed of the astrona...

question_answer

Q: Now we will consider a slighty different scenario related to example 8-17.  Find the required coeffi...

A: Write an expression for acceleration using kinematic relation

question_answer

Q: A sample of 2.4 kg of Lead is at a temperature of 20C. 154 kJ of energy is added to the lead. What i...

A: Consider the lead of mass m having specific heat capacity c and Ti and Tf are the initial and the fi...

question_answer

Q: Cracking Your Knuckles When you "crack" a knuckle, you cause the knuckle cavity to widen rapidly. If...

A: 0dB is the threshold limit of the audible sound.

question_answer

Q: A block of mass 2.00 kg is placed against a horizontal spring of constant k = 775 N/m and pushed so ...

A: (a) the elastic potential energy is given by,