A 115 mCi radioactive tracer is made in a nuclear reactor. When it is delivered to a

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

Question:

A 115 mCi radioactive tracer is made in a nuclear reactor. When it is delivered to a hospital 16 hours later its activity is 95 mCi. The lowest usable level of activity is 10 mCi.

a. What is the tracer’s half-life?

b. For how long after delivery is the sample usable?

Related Book For answer-question

Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

See More Books

Posted Date: Jun 01, 2020 04:46 AM

See More Questions

The radioactive waste from a nuclear reactor has a half-life of 1000 years. Waste is continually produced at the rate of 5 tons per year and stored in a dump site. (a) Set up an inhomogeneous...
A nuclear reactor that has been operating in equilibrium at a high thermal-neutron flux level is suddenly shut down. At shutdown, the density X of xenon 135 and the density I of iodine 135 are 7...
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...
Complete the questions in the table below.
What is the utility of contrasts in experimental design? What are orthogonal contrasts, and how are they helpful?
Define the types of protein structure: primary, secondary, tertiary, and quaternary. Which of these structures are altered by denaturation?
$X$ is the number of bits in error in the next four bits transmitted. What is the expected value of the square of the number of bits in error? Now, $h(X)=X^{2}$. Therefore, \[ \begin{aligned}...
An 11-m beam is subjected to a load, and the shear force follows the equation V(x) = 5 + 0.25x2 Where V is the shear force and x is length in distance along the beam. We know that V = dM/dx, and M is...
While taking the measurement of a different sphere with a radius of r = 2 . 2 2 cm , your instrument has a measurement uncertainty of \ pm 0 . 0 4 cm . What is the propagated uncertainty of the...
1. Create and upload a histogram of the salary data for the city of Bell, where each bar width is about 50,000 US dollars. (Data for the histogram is at the bottom). a.) Is the distribution of the...
Bill invests $50,000 in an oil partnership. He has taxable income (loss) and investments (withdrawals) as follow: Year 1: Income $10,000, withdrawal ($5,000) Year 2: Loss ($3,000) investment $4,000...
Demski Company pays its employees on the 1st and 15th of each month. It is March 31 and Demski is preparing financial statements for this quarter. Its employees have earned $\$ 32,000$ since the 15...
On January 1, 2014, Shields, Inc., issued $\$ 900,000$ of $9 \%, 20$-year bonds for $\$ 989,067$, yielding a market (yield) rate of 8\%. Semiannual interest is payable on June 30 and December...
Assume Credins Bank made a 10 million, one-year discount loan at 7% interest, requiring a compensating balance equal to 10% of the face value of the loan. Determine the effective annual rate...
On January 1, 2014, Verrecchia Company issued $\$ 450,000$ of 5-year, $13 \%$ bonds for $\$ 502,121$, yielding a market (yield) rate of $10 \%$. Interest is payable semiannually on June 30...
On accepting the position of chief executive officer and chairman of Muse Inc., Dominic Howard changed the firms weekly payday from Monday afternoon to the following Friday afternoon. The firms...
Required: a-1. Assuming the company can satisfy the annual demand, calculate the contribution margin for each type of sleeve using the table below. a-2. How much operating profit could Williams earn...
Using Gauss-Jordan elimination, invert this matrix ONLY 0 0 0 0 1
For which values of A does the scalar iterative system (10.2) have a periodic solution, meaning that u(k+m) = u(k) for some ml
(a) Devise an alternative method for finding a basis of the corange of a matrix. (b) Use your method to find a basis for the corange of Is it the same basis as found by the method in the text? 242...
Let A be a constant n x n matrix, and suppose u(t) is a solution to the system (a) Show that all derivatives dku/dtk k = 1, 2....... are also solutions. (b) Show that 4-A dt d'u LI =Atu. dtk
In the research on leader behaviors, which style of leadership describes the preferred high-high combination? (a) transformational (b) transactional (c) laissez-faire (d) democratic
When managers use offers of rewards and threats of punishments to try to get others to do what they want them to do, they are using which type of power? (a) formal authority (b) position (c) referent...
In terms of leadership behaviors, someone who focuses on doing a very good job of planning work tasks, setting performance standards, and monitoring results would be described as _________. (a) task...

A 115 mCi radioactive tracer is made in a nuclear reactor. When it is delivered to a

Question:

Expert Answer:

Applied Linear Algebra

Students also viewed these mathematics questions