FREE Trial
Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Radioactive decay can be described by the following equation lnA=lnA0kt where A0 is the original amount of the substance, A is the amount of the

image text in transcribed

Radioactive decay can be described by the following equation lnA=lnA0kt where A0 is the original amount of the substance, A is the amount of the substance remaining after time t, and k is a constant that is characteristic of the substance. For the radioactive isotope lead 214,k is 2.59102 minutes 1. If the original amount of lead-214 in a sample is 64.9mg, how much lead-214 remains after 30.6 minutes have passed? mg

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Statistical Reasoning for Everyday Life

Statistical Reasoning for Everyday Life

Authors: Jeff Bennett, Bill Briggs, Mario F. Triola

4th edition

978-0321817747, 321817745, 978-0321890139, 321890132, 321817621, 978-0321817624

More Books

Students also viewed these Chemistry questions

Question

★★★★★
Discuss the Sarbanes-Oxley Act in wake of the financial reporting misdeeds of Enron and WorldCom. Compare and contrast the two companies, why they were caught, and how policies have changed for...

Answered: 1 week ago

Question

★★★★★
What is the ;average annual return? What is the compound annual growth rate (CAGR) for this investment over the four years? What is the variance of the stock's returns? What is the standard deviation...

Answered: 1 week ago

Question

★★★★★
1 How would you consider the influence of employee wellness in evaluating the effectiveness of individual employee performance appraisal?

Answered: 1 week ago

Question

★★★★★
Given the following production schedule, compute the available-to-promisequantities. WEEK 4 Model B MPS 20 20 20 BI 20 20 20 20 Committed Customer Orders10 1010 1010 ATP:D 10

Answered: 1 week ago

Question

★★★★★
Predicat the products of each reaction: (DRAW) +Cl2CH2Cl2

Answered: 1 week ago

Question

★★★★★
Stocks A and B have the following returns: Stock B 1 2 3 Stock A 0.09 0.05 0.14 -0.03 0.07 0.04 0.03 0.03 0.02 -0.04 4 5 a. What are the expected returns of the two stocks? b. What are the standard...

Answered: 1 week ago

Question

★★★★★
Develop an M-file to solve a single ODE with the fourth-order RK method. Design the M-file so that it creates a plot of the results. Test your program by using it to solve Prob. 22.2. Employ a step...

Answered: 1 week ago

Question

★★★★★
If the row variable and column variable are interchanged, how are the expected frequencies affected? Is the value of the chi-square statistic affected? Is the number of degrees of freedom affected?

Answered: 1 week ago

Question

★★★★★
The position of a person pacing in a hall is given by the \(x(t)\) curve in Figure P3.6. During which time interval(s) is the acceleration (a) positive (b) negative? (c) Is the acceleration ever zero...

Answered: 1 week ago

Question

★★★★★
For the circuit shown in Fig. 12-47, (a) Obtain the voltage transfer function Hu(w) (b) Find the frequency at which the function is real. + V ww R R Fig. 12-47 F V

Answered: 1 week ago

Question

★★★★★
Write the phasor equation for the single-loop, coupled circuit shown in Fig. 14-38. j5 . | 1 k = 0.65 10 0 50/0 V j3 K -j8 .

Answered: 1 week ago

Question

★★★★★
5. If the multiplier is 5 and investment increases by $3 billion, equilibrium real GDP will increase by: LO31.5 a. $2 billion. b. $3 billion. c. $8 billion. d. $15 billion. e. None of the above.

Answered: 1 week ago

Question

★★★★★
7. Explain graphically the determination of equilibrium GDP for a private economy through the aggregate expenditures model. Now add government purchases (any amount you choose) to your graph, showing...

Answered: 1 week ago

Question

★★★★★
2. If total spending is just sufficient to purchase an economys output, then the economy is: LO31.3 a. In equilibrium. b. In recession. c. In debt. d. In expansion.

Answered: 1 week ago

Previous Question Next Question