The results of activity measurements on a radioactive sample are given in the table.(a) Find the half-life.(b)

Question:

The results of activity measurements on a radioactive sample are given in the table.(a) Find the half-life.(b) How many radioactive nuclei were present in the sample at t = 0?(c) How many were present after 7.0h?

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

Step by Step Answer:

Related Book For book-img-for-question

Modeling the Dynamics of Life Calculus and Probability for Life Scientists

ISBN: 978-0840064189

3rd edition

Authors: Frederick R. Adler

See More Books

Question Posted: Oct 25, 2010 01:57 AM

See More Questions

The results of activity measurements on a mixed sample of radioactive elements are given in the table.(a) How many different nuclides are present in the mixture?(b) What are their half-lives?(c) How...
Remember - draw cash flow diagrams where appropriate and put answers in boxes. You may complete on a separate piece of paper- just print legibly and put boxes around your final answer and scan in to...
At t = 0, a pure sample of radioactive nuclei contains N0 nuclei whose decay constant is . Determine a formula for the number of daughter nuclei, ND, as a function of time; assume the daughter is...
Write a program that takes three double command-line arguments x, y, and z, reads from standard input a sequence of point coordinates (xi, yi, zi), and prints the coordinates of the point closest to...
Explain organizational learning techniques for today's HR professionals and how they enhance training and development. Within your essay, address the following points: Describe competency models,...
x = 35, n = 50, H0: p = 0.6, H0: p > 0.6, = 0.05 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion...
Identify the internal control principles that reiate directly to the custody of securities.
A machine shop manufactures a stainless steel part that is used in an assembled product. Materials charged to a particular job amounted to $600. At the point of final inspection, it was discovered...
1. Find the components of the velocity of a helicopter traveling 155 km/h at an angle of 25 to the ground. 2. A submarine dives 110.0 m at an angle of 10.0 below the horizontal. What are the two...
When Justin and Nicole formed a partnership, Nicole signed over ownership of 1,000 shares of $15 par value stock she owns in a publicly traded corporation. The partners agreed to sell the stock in...
Calculate the mass defect for the + decay of 137N. Is this decay energetically possible? Why or why not? The atomic mass of 137N is 13.005739 u.
H A (t) is the activity of a sample at some time t and A0 is the activity at t = 0, show that A( t) = A0e -t.
Explain why many consider expectancy theory to be the best current explanation of employee motivation.
All of the following are assumptions about consumer behavior except: a. complete preferences b. consistent consumers c. nonsatiation d. relativity
Indifference curves are convex to the origin due to: a. the Law of Diminishing Marginal Utility b. the Law of Diminishing Returns c. relative prices d. the Law of Demand
The relationship between average and marginal is: a . average causes marginal b . marginal causes average c . average chases marginal d . marginal chases average
If average productivity is 20 bu/acre, and marginal productivity is 30 bu/acre then: a . average productivity is increasing b . average productivity is decreasing c . average productivity is constant...
When too much of an input is used, and output decreases, the production process results in: a . constant returns b . increasing returns c . decreasing returns d . negative returns
Provide an example of an operating cash inflow that could result from sustainability activities. Also provide an example of an operating cash outflow that would support sustainability.
Burberrys competitive advantage is through its differentiation strategy. What risk should Burberry remain aware of?
Re-compute the miss rate when the cache line size is 16 bytes, 64 bytes, and 128 bytes. What kind of locality is this workload exploiting? Media applications that play audio or video files are part...
What is thread affinity, and how does it influence performance in multi-core systems? What tools or techniques are available for tuning thread affinity ?
Management of Mittel Company wants to reduce the elapsed time from when a customer places an order to when it is shipped. It provided the following data for a recent quarter: Inspection time Wait...
For a language L over alphabet , we define L = {xz *y * with |x| = |y| = |2| such that ryz L}. For example, if L = {a, to, cat, math, solve, theory}, then L = {ct,thry}. Prove that if L is regular,...

The results of activity measurements on a radioactive sample are given in the table.(a) Find the half-life.(b)

Question:

Time (h) 0 0.5 1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0 7.0 Decays/s 20,000 14,800 11,000 8,130 6,020 4,460 3,300 1,810 1,000 550 300

Step by Step Answer:

In 2 a A leastsquares fit to log of the ...View the full answer

Modeling the Dynamics of Life Calculus and Probability for Life Scientists

Students also viewed these Modern Physics questions