A radioactive sample has an initial activity of 4.5 mCi (millicuries). Its activity 15 hours later is

Question:

A radioactive sample has an initial activity of 4.5 mCi (millicuries). Its activity 15 hours later is 1.8 mCi. What is its half-life?

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

Step by Step Answer:

Related Book For book-img-for-question

College Physics Reasoning and Relationships

ISBN: 978-0840058195

2nd edition

Authors: Nicholas Giordano

See More Books

Question Posted: Jul 19, 2024 03:00 PM

See More Questions

9. A source has a half-life of 12 hours and an initial activity of 10 mci. After four days, what is its activity? 10. Calculate the percentage of activity remaining in a source after 10 halt lives....
Half-life Practice wrsday, April 21, 2022 15 Goal: to further understand how nuclear reactions progress and are measured. Warm Up: 1. If a radioactive isotope has a half life of 30.5 days, how much...
1. How many half-lives must elapse until 86.0% of a radioactive sample of atoms has decayed? (Note that there is no unit for this answer.) 2. A radioactive sample at a lab contains a mixture of 223...
Consider a random walk consisting of equi-probable p = q = 1/2 steps in left or right directions. However the step length at ith step is given by e-, i = 1,2,3..... N, with > 0 a constant. Calculate...
Draw a graph depicting the Texas Panhandle market for onions. The Panhandle consists of four counties: El Paso, Hudspeth, Culberson, and Reeves. When price is $2 per 3-pound bag, the quantity...
thank you, 2 questions thank you! Mao and Madhav are equal partners in the M&M Partnership (calendar year-end entity). On January 1 of the current year, M&M Partnership is liquidated. At the time of...
Analyzing Why Investors Purchase Bonds. In your own words, explain how each of the following factors is a reason to invest in bonds. a. Interest income b. Possible increase in value c. Repayment at...
The inventory records of RST indicate the following regarding its best-selling product in the month of January: Required: Calculate the dollar amount of ending inventory and cost of goods sold under...
Carson, Inc., acquires 80 percent of the outstanding common stock of Gardena corporation on January 1, 2020, in exchange for $900,000 cash. At the acquisition date, Gardena's total fair value,...
A radioactive material has an activity of 2.5 Bq. What is its activity in Ci?
A radioactive sample has an initial activity of 800 decays/s. Its activity 24 hours later is 200 decays/s. What is its half-life?
Using the information and the form given below, complete the Balance Sheet for a firm having sales of Rs. 18,00,000. Sales to net Worth 2.25 times Long-term debt to net worth 60% Total-debt to net...
In the case below design and draw a Rich Picture that identifies the key stakeholders, actors, power and decision-making authorities. The novel coronavirus has turned the world upside down as a...
1. Two spherical stars A and B have densities PA and PB, respectively. A and B have the same radius, and their masses MA and M are related by MB = 2M. Due to an interaction process, star A loses some...
2 4. A rod of length 2 cm makes an angle rad with the principal axis of a thin convex lens. The lens has a focal 3 40 3 cm from the object as shown in the figure. The height of the length of 10 cm...
7. Consider an LC circuit, with inductance L = 0.1 H and capacitance C = 103 F, kept on a plane. The area of the circuit is 1 m. It is placed in a constant magnetic field of strength Bo which is...
Beach 10. The figure shows a circuit having eight resistances of 10 each, labelled R1 to R8, and two ideal batteries with voltages & = 12 V and 2 = 6 V. 1 R B1 Rs R R Which of the following...
Water is used for both fluids (unmixed) flowing through a single-pass, cross-flow heat exchanger. The hot water enters at 90C and 10,000 kg/h, while the cold water enters at 10C and 20,000 kg/h. If...
A spacecraft has left the earth and is moving toward Mars. An observer on the earth finds that, relative to measurements made when the spacecraft was at rest, its a. length is shorter b. KE is less...
Selected accounts with some amounts omitted are as follows: Work in Process Oct. 1 Balance 22,900 Oct. 31 Goods finished X 31 Direct materials 91,700 31 Direct labor 165,700 31 Factory overhead X...
Assume the appropriate discount rate is 8%. You will receive a payment every year for the next 13 years, which will grow at 4% annually. The amount of the first payment will be $6,000. What is the...
Assume the appropriate discount rate is 5%. What is the value 4 years from today of an annuity that makes payments of $2,000 per year if the first payment is made 5 years from now and the last...

A radioactive sample has an initial activity of 4.5 mCi (millicuries). Its activity 15 hours later is

Question:

Step by Step Answer:

Each halflife the mass of radioactive material decreases by a factor of onehalf Therefore ...View the full answer

College Physics Reasoning and Relationships

Students also viewed these Sciences questions