Question: (a) 238U; and (b) 206Pb does the rock now contain? (c) How many atoms of 238U did the rock contain at formation? (d) What is

(a) 238U; and

(b) 206Pb does the rock now contain?

(c) How many atoms of 238U did the rock contain at formation?

(d) What is the age of the rock?

Step by Step Solution

★★★★★

3.40 Rating (178 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a The mass of a 238U atom is 238 u1661 1024 gu 395 1022 g so the number ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

2-P-M-P-N-P (242).docx

120 KBs Word File

Students Have Also Explored These Related Modern Physics Questions!

Q:

Like many married couples, Morgan and Thomas Jensen are trying their best to save for two important investment objectives: (1) an education fund to put their two children through college; and (2) a...

Q:

How many atoms of nitrogen are present in 5.00 g of each of the following? a. Glycine, C 2 H 5 O 2 N c. Calcium nitrate b. Magnesium nitride d. Dinitrogen tetroxide

Q:

How many atoms of arsenic are there in a 145-gram sample of gallium arsenide, GaAs?

Q:

The isotope 238U decays to 206Pb with a half-life of 4.47 x 109 y. Although the decay occurs in many individual steps, the first step has by far the longest half-life; therefore, one can often...

Q:

A rock is found contain 4.2 mg of 238U and 2.135 mg of 206Pb, all the 206Pb were decay from uranium with a half-life 4.47 109 years, the rock contained no lead at the formation. (a) Calculate atoms...

Q:

54. The gravitational potential energy of a body depends on its A. speed and position. B. mass and volume. C. weight and position. D. speed and mass. E. weight and volume. 55. A skydiver weighing 500...

Q:

This is a review for an exam, no need for explanations just answers. Thanks in advance!! Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The total...

Q:

*Answer the following questions that are in the attachment** Using what the information below to answer the questions. The European Explorers;First Contact:"In 1492 Columbus sailed the ocean blue..."...

Q:

5. 82Pb28 is the stable nal daughter of the radioactive series whose parent is 9Th23'2 (see gure below). The half-life of the parent is 1.4 x 1010 yr. A piece of thorium ore containing 1 kg of...

Q:

The contents of the rock have a 206Pb to 238U mass ratio of 0.175:1.00. Assuming that the rock did not contain any 206Pb at the time of its formation, determine the age of the rock. Uranium-238...

Q:

A rock containing 238U and 206Pb was examined to determine its approximate age. The sample of a rock contained 1.689g of 206Pb and 10.78g238U. Assuming no lead was originally present and that all...

Q:

Modern organizations come to a situation where they have to hire potential candidates through an external recruitment process. However, many studies highlighted the benefits and shortcomings of using...

Q:

The outline of a presentation should include: Acknowledgments Possible questions from the audience A beginning, middle and an end of thepresentation References Should one decide to include an...

Q:

Due Date: August 1 0 , 1 1 : 5 9 PM Question 1 1 pts Deciding whether to introduce a new product line is an example of a ( n ) : operational decision. nonprocedural decision. procedural decision....

Q:

Ridenour Ltd. is preparing its first-quarter monthly cash budget for 2011. The following information is available about actual 2010 sales and expected 2011 sales: Tracing collections from prior year...

Q:

Technology Accessories Inc. is a designer, manufacturer, and distributor of accessories for consumer electronic products. Early in 20Y3, the company began production of a leather cover for tablet...

Q:

Hard Core had budgeted sales of 190,000 feet of its concrete culvert products for June 2010. Each foot of product requires 4 pounds of concrete ($0.10 per pound) and 7.5 pounds of gravel ($0.04 per...

Q:

Each team member has the responsibility to become an expert on an inventory method. This expertise will be used to facilitate teammates understanding of the concepts relevant to that method. 1. Each...

Q:

Given a normal distribution with /x = 100 and cr = 10, if you select a sample of n = 25, what is the probability that Zis a. Less than 95? b. Between 95 and 97.5? c. Above 102.2? d. There is a 65%...

Q:

A box of nine gloves contains two left-handed gloves and seven right-handed gloves. a. If two gloves are randomly selected from the box, without replacement (the first glove is not returned to the...

Q:

In the circuit shown in Fig. 3.25 the emf of each battery is equal to ε = 60 V, and the capacitor capacitances are equal to C1 = 2.0μF and C2 = 3.0μF. Find the charges which will flow...

Q:

Find the potential difference φA φB between points A and B of the circuit shown in Fig. 3.26. E2 &, B

Q:

Determine the potential at point 1 of the circuit shown in Fig. 3.27, assuming the potential at the point O to be equal to zero. Using the symmetry of the formula obtained, write the expressions for...

Q:

3) Bond Valuation: Doisneau 19 year bonds have an annual coupon interest of 13%, make interest payment on a semiannual basis, and have a $1,000 par value. If the bonds are trading with a market's...

Q:

An investment will pay you $52,000 in 10 years. If the appropriate discount rate is 7.9 percent compounded daily, what is the present value? (Use 365 days a year. Do not round intermediate...

Q:

Question 20 2 points Save Answ Suppose a bank enters a repurchase agreement in which it agrees to sell Treasury securities to a correspondent bank at a price of $9999907 with the promise to buy them...