What is the mean lifetime of the material

Assignment Help Physics

Reference no: EM13687578

Solve the following questions:

Question I: A radioactive sample produces 3840 decays per minute at one point in an experiment and 308.09 days later produces 240 decays per minute.

Part a: What is the half time?

Part b: What is the decay constant?

Part c: What is the mean lifetime of the material?

Question II: What fraction of a sample of cobalt-60 is left after 36.8956 yr. ( the half-life of cobalt-60 is 5.2708 yr.)

Question III: What period of time is required for a sample of radioactive oxyden-15 to lose 99.5% of its activity? (The half-life of uranium is 122.24 yr).

Give the detailed explanation of above question.

Reference no: EM13687578

Questions Cloud

What uniform annual series of cash flows : What uniform annual series of cash flows over a 12-year period is equivalent to an investment of $5,000 at t=0, followed by receipts of $600 per year for 11 years and a final receipt of $1,600 at t=12 if the investor's time value of money is 6 percen..

What is the equilibrium price and quantity : Consider the following demand and supply functions: Qd = 100 - 5P and Qs = 4 + 3P. What is the slope of each line? What is the equilibrium price and quantity?

After a competitive bidding process : After a competitive bidding process, Firm G wins a contract to collect and dispose of Firm H’s hazardous waste for $1,000 per year. Firm G’s labor costs are $200 per year, and because of the unique nature of the waste, it has to invest $8,000 in a sp..

Find what is the magnitude of the magnetic field : A charge of -8.13 microC is traveling at a speed of 8.44 x106 m/s in a region of space where there is a magnetic field. What is the magnitude of the magnetic field

What is the mean lifetime of the material : A radioactive sample produces 3840 decays per minute at one point in an experiment and 308.09 days later produces 240 decays per minute. What is the mean lifetime of the material

Familiarise yourself with the anthonys orchard company : The Audit Committee is responsible for obtaining the appropriate input from management and considers the type and scope of work to be performed by the auditor and the audit fees associated with the audit.

Find the magnetic field strength at the center of the coil : A piece of copper wire has a resistance per unit length of 6.00 x 10-3 ohm/m. Find the magnetic field strength at the center of the coil

What percent is this of the width color slide : During a lunar eclipse, a picture of the moon (which has a diameter of 3.48 × 106m and is 3.86 × 108m from the earth) is taken with a camera whose lens has a focal length of 320mm. What percent is this of the width of a 24mm × 36mm color slide

What current is needed to produce such a field : The magnetic field of the brain has been measured to be approximately 3.0×1012 T. What current is needed to produce such a field at the center of the loop

User Account

All Pages