Solution-How long ago were elements that formed our earth

How long ago were elements that formed our earth released

Assignment Help Physics

Reference no: EM13954410

A threory of nuclear astrophysics is that all the heavy elements like uranium are formed in supernova explosions of massive stars, which immediately release the elements into space. If we assume that at the time of the explosion there were equal amounts of 235U and 238U, how long ago were the elements that formed our Earth released, given that the present 235U/238U ratio is 0.007? (The half-lives of 235U and 238U are 0.70 x 10^9 yr and 4.47 x 10^9 yr, respectively)

Reference no: EM13954410

Questions Cloud

Convert the table to a probability table by dividing : What is the probability that a person is color blind, given that the person is a male?

Game is thus parameterized by the particular population : The game is thus parameterized by the particular population density ranges that allow organisms to be born or to continue to thrive. Each cell has up to eight neighbors (above, below, left, right, and four diagonals). Thus, if you count the cell as w..

Discuss how diversity impact leadership in homeland security : Describe and discuss how diversity impacts leadership in Homeland Security and Emergency Management - describe and Discuss the hiring process associated with filing entry-level first responder positions.

Stockholders equity accounts : MJ Company has identified the following items. Indicate whether each item is included in an account in the Stockholders' Equity category of the balance sheet and identify the account title. Also, indicate whether the item would increase or decreas..

How long ago were elements that formed our earth released : A threory of nuclear astrophysics is that all the heavy elements like uranium are formed in supernova explosions of massive stars, which immediately release the elements into space. If we assume that at the time of the explosion there were equal a..

How close would the alpha get to a copper nucleus : What is the distance of closest approach of an alpha particle of speed v= 1.70 x10^7 m/s to a gold nucleus of Z = 79? How close would the alpha get to a copper nucleus of Z = 29? Assume that the gold and copper nuclei remain at rest.

How much pb-210 must be loaded onto the column : How much Pb-210 is there per mole of U-238 in secular equilibrium with it's daughters? How much uranium oxide (UO2) must be mined to provide the Pb-210 for one elution column in part B?

Should the company make the investment in the equipment : Redo Edward Larne 's analysis assuming an inflation rate of 4 percent. Should the company make the investment in the equipment?

Determining the present value and future value : On January 1, 2014, $16,000 is deposited. Assuming an 8% interest rate, calculate the amount accumulated on January 1, 2019, if interest is compounded (a) annually, (b) semi- annually, and (c) quarterly.

User Account

All Pages

How long ago were elements that formed our earth released

Reference no: EM13954410

Reference no: EM13954410

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

Find the magnitude of the resulting magnetic field

Find the equivalent resistance

What is the electric field at the location

What is the maximum displacement of the bridge deck

What is the magnitude of the current in the wire

Blackbody

Gravity conveyor

Calculate the dc voltage

Quadrupole moments in the shell model

Determine the tension in each string

Introductory mechanics: dynamics

Evaluate maximum altitude

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT