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

Question

1 Approved Answer

1. Tritium, a by-product of the CANDU nuclear power reactor, has a half life of 12.3 a. How much time is required for its radioactivity

1. Tritium, a by-product of the CANDU nuclear power reactor, has a half life of 12.3 a. How much time is required for its radioactivity to reach one-quarter of its original level?

2. The half life of a certain radioisotope is 20 h. How much of an original 320 g will remain the same radioisotope after a) 40 h? b) 80 h? c) 5 d?

Step by Step Solution

★★★★★

3.42 Rating (149 Votes )

There are 3 Steps involved in it

Step: 1

Solution 1 To determine the time required for Tritiums radioactivity to reach onequarter of its original level we need to calculate the number of half... 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

Step: 3

blur-text-image

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

Chemistry The Central Science

Chemistry The Central Science

Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward

12th edition

321696727, 978-0132175081, 978-0321696724

More Books

Students also viewed these Physics questions

Question

★★★★★
As at 1 January 2010 salary outstanding was 128,400. During the year ended 31 December 2010 598,800 was paid as salary and as at 31 December 2010 salary amounting to 142,900 remained unpaid. What is...

Answered: 1 week ago

Question

★★★★★
Hyten Corporation On June 5, 1998, a meeting was held at Hyten Corporation, between Bill Knapp, Director of Marketing/Sales, and John Rich, director of engineering. The purpose of the meeting was to...

Answered: 1 week ago

Question

★★★★★
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

Answered: 1 week ago

Question

★★★★★
Oil flows through the 100-mm-diameter pipe with a velocity of 5 m/s. If the pressure in the pipe at A and B is 80 kpa, determine the x and y components of force the flow exerts on the elbow. The flow...

Answered: 1 week ago

Question

★★★★★
A firm's short-run cost function is C(q) = 200q - 6q2 + 0.3q3 + 400. Determine the fixed cost, F; the variable cost function, AVC; the average cost, AC; the marginal cost, MC; and the average...

Answered: 1 week ago

Question

★★★★★
(Related to Checkpoint 5.4) (Present value) What is the present value of $700 to be received 15 years from now discounted back to the present at 8 percent? The present value of $700 to be received 15...

Answered: 1 week ago

Question

★★★★★
The JCM, DCSM, VM and ERI Model might be read as encouraging management-led, top-down, permanent changes to psychosocial features of work to enhance well-being and performance. Even STST, with its...

Answered: 1 week ago

Question

★★★★★
1. What do you think of Brad and Barbara's seeking help for Brad's parents? 2. What prompted Richard to seek assistance? Was it only because of Brad and Barbara? 3. What type of financial plan seems...

Answered: 1 week ago

Question

★★★★★
Problem 7-23 Comiskey Fence Co. is evaluating extending credit to a new group of customers. Although these customers will provide $108,000 in additional credit sales, 8 percent are likely to be...

Answered: 1 week ago

Question

★★★★★
David, the owner of a local poster shop, comes to you for help. "We've only been breaking even the past two years, and I'm getting very frustrated! I don't know what to do because I feel like I've...

Answered: 1 week ago

Question

★★★★★
design a process for one of the following: 1. preparing for an exam 2. writing a term paper 3. planning a vacation

Answered: 1 week ago

Question

★★★★★
You select a sample of students in the MSDS program and find that the mean age is 31. Suppose the mean age of the MSDS student population is 33. Which number is a statistic? Question 19 options: The...

Answered: 1 week ago

Question

★★★★★
b) Sum Array values that are below a specified value Implement the following C++ code in assembly language in Visual Studio (MASM Assemble program), using the block-structured .IF and .WHILE...

Answered: 1 week ago

Question

★★★★★
1. AC function declared as void pp (int "p) { } is compiled to the MIPS code on the right. Write the C code that performs the same operation as the MIPS code labeled 'pp' to the right in no more than...

Answered: 1 week ago

Question

★★★★★
The figure below shows a storage tank holding natural gas. In an adjacent instrument room, a U-tube mercury manometer in communication with the storage tank reads L-1.9 m. If the atmospheric pressure...

Answered: 1 week ago

Question

★★★★★
Recursion Lab Longest Palindrome Subsequence (LPS) is a "poster child" for recursion and very hard to solve in any other way. In this lab you will create class named LPS and within that class you...

Answered: 1 week ago

Question

★★★★★
Help Save & Exit Submit The most recent financial statements for H u , Incorporated, are shown here ( assuming no income taxes ) : \ table [ [ Income Statement,Balance Sheet ] , [ \ table [ [ Sales ]...

Answered: 1 week ago

Question

★★★★★
Economic feasibility is an important guideline in designing cost accounting systems. Do you agree? Explain.

Answered: 1 week ago

Question

★★★★★
Consider the gas-phase transfer of an electron from a sodium atom to a chlorine atom: Na (g) + Cl (g) Na+ (g) + Cl- (g) (a) Write this reaction as the sum of two reactions, one that relates to...

Answered: 1 week ago

Question

★★★★★
Describe the characteristic electron-domain geometry of each of the following numbers of electron domains about a central atom: (a) 3, (b) 4, (c) 5, (d) 6.

Answered: 1 week ago

Question

★★★★★
For the equilibrium Kp = 8.5 Ã 10-3 at 150 oC. If 0.025 atm of IBr is placed in a 2.0-L container, what is the partial pressure of all substances after equilibrium is reached? 2 IBr(g)12(g)...

Answered: 1 week ago

Question

★★★★★
a. Prove that Lahiris method results in a probability proportional to size sample with replacement. Let J be an integer with J max {Mi}. Let U1, U2, . . . be discrete uniform {1, . . . , N} random...

Answered: 1 week ago

Question

★★★★★
Show that the formulas for stratified random sampling in (3.1), (3.3), and (3.5) follow from the formulas for the HorvitzThompson estimator in Section 6.4.3. For a stratified random sample, we sample...

Answered: 1 week ago

Question

★★★★★
Use the population in Exercise 2 of Chapter 4 for this exercise. Let i be proportional to xi. a. Using the draw-by-draw method illustrated in Example 6.8, calculate i for each unit and ij for each...

Answered: 1 week ago

Previous Question Next Question