The half life of the uranium isotope 235 U is 700 million years The earth is approximately 4 5 billion years old How much more 235 U was there when the earth formed than there is today Give your answer as the then to now ratio ...

Model The number of 235 U atoms decays exponential ...

The half-life of the uranium isotope 235 U is 700 million years. The earth is approximately 4.5

Question:

The half-life of the uranium isotope ²³⁵U is 700 million years. The earth is approximately 4.5 billion years old. How much more ²³⁵U was there when the earth formed than there is today? Give your answer as the then-to-now ratio.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics For Scientists And Engineers A Strategic Approach With Modern Physics

ISBN: 9780321740908

3rd Edition

Authors: Randall D. Knight

See More Books

Question Posted: Dec 15, 2020 06:58 AM

See More Questions

the half life of carbon tetrachloride (CT) in a ZVI mediated reactive cell is 4.5 hra for ita degradation into methane as the end product the initial CT concentration is 1 mg/L to achieve its target...
The 235U isotope undergoes fission when bombarded with neutrons. However, its natural abundance is only 0.72 percent. To separate it from the more abundant 238 U isotope, uranium is first converted...
The two most common isotopes of uranium are 235U and 238U. (a) Compare the number of protons, the number of electrons, and the number of neutrons in atoms of these two isotopes. (b) Using the...
What categories of conflict occurred in this project? At what stage was the project?
A problem with a telephone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telephone company. The file Phone contains samples of 20 problems...
Firm A is currently in long-run perfectly-competitive equilbrium. The demand for Firm A's good falls. What can we expect to happen to market quantity supplied, price, and the number of firms in the...
Write the formula to separate the return on total assets into its two basic components. Explain how these components of the return on total assets are helpful to financial statement users for...
WHAT IF THE FACTS WERE DIFFERENT? If management employees had interrupted union-organizing activities twenty-five times rather than just two, would the outcome of this case have been different? Why...
Question 2 2 Not yet answered Marked out of 2.00 Flag question If variable cost per unit 5.5, initial fixed cost OMR 18000 and unit produces and sold 25000 units What is the total cost to MW Company...
Higher Company had the following disposals of production equipment during 2006: Higher's policy is to charge a full year's depreciation in the year of purchase if an asset is purchased before July 1....
A chest x ray uses 10 keV photons with an RBE of 0.85. A 60 kg person receives a 0.30 mSv dose from one chest x ray that exposes 25% of the patients body. How many x ray photons are absorbed in the...
Radioactive isotopes often occur together in mixtures. Suppose a 100 g sample contains 131 Ba, with a half-life of 12 days, and 47 Ca, with a half life of 4.5 days. If there are initially twice as...
In Problems 614, perform the operations that are defined, given the following matrices: BD 3 3 2 A = = [28] = [(2 3] B 4 2 C = [3 4] D = 4 [3] 5
(b) A cylindrical storage tank with base area 90 m is being filled with water through an entry duct with cross-section area 250 cm, as shown in Figure 3. Concurrently, water is being extracted from...
Po A cylinder/piston arrangement contains 5 kg of water at 100 C with x= 20%. Initially the piston of mass m, 75 kg rests on a set of stops (see figure). The outside pressure is 100 kPa, and the area...
TABLE 2 Present Value of an Annuity of $1 n 123456 8% 9% 0.925926 0.917431 4 7 8 9 10 11 12 13 14 15 16 17 11.652296 10.837770 10.105895 9.446649 12.165669 11.274066 10.477260 9.763223 18 19...
There are 4 suits (heart, diamond, clover, and spade) in a 52-card deck, and each suit has 13 cards. Suppose your experiment is to draw one card from a deck and observe what suit it is. Express the...
Write isotopic symbol of zirconium and how many neutrons are present in one atom of this isotope
Estimate the relative carbon output of heating a home using (a) natural gas, (b) electrical heating powered by electricity from coal-fired power plants. How much do your assumptions about what...
Chicago Company sold merchandise to a customer for $1,500 cash in a state with a 6% sales tax rate. The total amount of cash collected from the customer was $558. $600. $642. $636. Nevada Company...
A bucket is filled with water to a height of 23 cm, then a plug is removed from a 4.0-mm-diameter hole in the bottom of the bucket. As the water begins to pour out of the hole, how fast is it moving?
What does the top pressure gauge read in FIGURE EX14.30? 200 kPa 3.0 m/s 10 m Oil 2.0 m/s FIGURE EX14.30
What does the top pressure gauge read in FIGURE EX14.30? 200 kPa 3.0 m/s 10 m Oil 2.0 m/s FIGURE EX14.30
Need help filling out these tax forms. Not sure how to do 1040 page 2 or schedule 3. I think I have schedule 1 right but need help with the itemized deductions for 1040 page 1 Required information...
Question:What should Airbus and Boing have learned from IBERIA case? What changed in the industry when Boing decided to develop Dreamliner in 2003?( Read the following case and ppt) Airline Route...
Which of the following needs to be always assessed when you are evaluating the literature you have obtained for your research? O All of the above O Sufficiency Value O Relevance Several approaches...

The half-life of the uranium isotope 235 U is 700 million years. The earth is approximately 4.5

Question:

Step by Step Answer:

Model The number of 235 U atoms decays exponential...View the full answer

Physics For Scientists And Engineers A Strategic Approach With Modern Physics

Students also viewed these Mathematics questions