Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 109 yr. Most

Question:

Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 × 109 yr. Most of the rest of natural uranium is 23592U with a half-life of 7.04 × 108 yr. Today a sample contains 0.720% 23592U.

(a) What was this percentage 1.0 billion years ago?

(b) What percentage of uranium will be 23592U 100 million years from now?

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

Step by Step Answer:

Related Book For book-img-for-question

Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

See More Books

Question Posted: Oct 05, 2017 09:19 AM

See More Questions

Almost all of naturally occurring uranium is 238/92U with a half-life of 4.468 x 109 yr. Most of the rest of natural uranium is 235/92U with a half-life of 7.038 x 108yr. Today a sample contains...
The United States uses 1.0 x 1019J of electrical energy per year. H all this energy came from the fission of 235U, which releases 200 MeV per fission event, (a) How many kilograms of 235U would be...
The uranium isotope 234 U accounts for 0.0054% of naturally occurring uranium. Its half-life 1/2 ( 234 U) =2.455 10 5 y is much too short for any primordial 234 U to still exist on Earth. Explain...
During a worldwide recession in 1983, the oil cartel began to lower prices. Why would a recession make the cartel more vulnerable to price cutting? How would the reduced demand be shared between the...
Determine the value c so that each of the following functions can serve as a probability distribution of the discrete random variable X: (a) f(x) = c (x2 + 4), for a: = 0, 1, 2, 3; (b) f(x) =...
You are engaged in the audit of Phoenix Corp., a new client, at the close of its first fiscal year, April 30, 20X1. The accounts had been closed before the time you began your year-end fieldwork. You...
Describe what interactive marketing is and how it creates customer value, customer relationships, and customer experiences.
a. Make an exponential smoothing forecast for periods 2 through 5 with 2 values of alpha, 0.05 and 0.60, and an assumed forecast for period 1 of 30. b. Compute the MAD for each of the above...
Surplus is the difference between an insurers assets and its liabilities True False 2. The combined ratio is lower during the hard market part of the underwriting cycle that it is during softer parts...
(a) Employ superposition to determine the individual contribution from each independent source to the voltage v as labeled in the circuit shown in Fig. 5.57. (b) Compute the power absorbed by the ?...
What stable nucleus has approximately half the radius of a uranium nucleus?
A banana contains about 420 mg of potassium, of which a small fraction is the radioactive isotope 4019K (Appendix B). Estimate the activity of an average banana due to 4019K.
Find each square root. If it is not a real number, say so. V-16
Air at \(1 \mathrm{~atm}\) and \(25^{\circ} \mathrm{C}\) flows in a 4-cm-diameter glass pipe at a velocity of \(7 \mathrm{~m} / \mathrm{s}\). The friction factor for this flow is (a) 0.0266 (b)...
Find the regime of the boundary layer at the location of \(0.1 \mathrm{~m}\) from the leading edge of an aerofoil, if the airspeed is \(80 \mathrm{~ms}^{-1}\), and air condition is at that of sea...
``Nuclear Deterrence,'' by Harvey A . Smith, UMAP327. The author analyzes the stability of the arms race, assuming objectives similar to those suggested by General Taylor. The module develops...
A saturated vapor feed at \(1000.0 \mathrm{kmol} / \mathrm{h}\) of methanol \((5.0 \mathrm{~mol} \%)\) and water \((95.0 \mathrm{~mol} \%)\) is fed to a distillation column with 18 stages plus a...
Use the partition functions in Equations 1.98, 1.99, and 1.100 to find the translational, rotational, and vibrational contributions to the average energy of a diatomic molecule. Compare each result...
Identify the three levels at which value to customers from a product or service may occur. Using this information, provide an example for the U.S. Postal Service .
MgO prevents premature evaporation of Al in a furnace by maintaining the aluminum as Al2O3. Another type of matrix modifier prevents loss of signal from the atom X that readily forms the molecular...
Find the capacitance of the Earth. (Suggestion: The outer conductor of the spherical capacitor may be considered as a conducting sphere at infinity where V approaches zero.)
Two capacitors, C1 = 5.00 F and C2 = 12.0 F, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. (a) What is the equivalent capacitance of the combination? What...
What If? The two capacitors of Problem 16 are now connected in series and to a 9.00-V battery. Find (a) The equivalent capacitance of the combination, (b) The potential difference across each...
You are the digital marketing director for High West fashions, a regional clothing company that specializes in custom t-shirts. Your company has decided to launch an online advertising campaign that...
In-the-money put options will automatically get exercised at the expiration. True OR False
Which of the following examples of business-use property is NOT eligible for Section 1231 treatment when sold at a gain? * Sale of land held for three years. Net gain from a casualty gain on a dump...

Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 109 yr. Most

Question:

Step by Step Answer:

Since amounts are not specified assume that today there ...View the full answer

Physics Principles with Applications

Students also viewed these Modern Physics questions