Question: Natural samarium has been found to emit a-particles at a rate of 135 particles/gm/sec. The isotope Sm147 (abundance 15.0%) is responsible for the activity;

Natural samarium has been found to emit a-particles at a rate of

Natural samarium has been found to emit a-particles at a rate of 135 particles/gm/sec. The isotope Sm147 (abundance 15.0%) is responsible for the activity; what is its half-life in years?

Step by Step Solution

★★★★★

3.34 Rating (154 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Mathis Co. at the end of 2014, its first year of operations, prepared a reconciliation between pretax financial income and taxable income as follows: Pretax financial income $ 500,000 Estimated...

In several cases, a nearby star has been found to have a large planet orbiting about it, although the planet could not be seen. Using the ideas of a system rotating about its center of mass and of...

The effectiveness of barbiturates as sedatives has been found to be directly related to their solubility in, and thus their ability to penetrate, the lipid bilayers of membranes. Which of the...

The Crescent Drilling Company owns the drilling rights to several tracts of land on which natural gas has been found. The amount of gas on some of the tracts is somewhat marginal, and the company is...

23.35 Hand sanitizers. Hand disinfection is frequently recommended for prevention of transmission of the rhinovirus that causes the common cold. In particular, hand lotion containing 2% citric acid...

In a destructive test of product quality, a briefcase manufacturer places each of a simple random sample of the days production in a viselike device and measures how many pounds it takes to crush the...

The executive search being conducted for Western Bank by Headhunters Inc. may finally be bearing fruit. The position to be filled is a key oneVice President for Information Processingbecause this...

One of the chair conformers of 1,3-dimethylcyclohexane has been found to be 5.4 kcal mol (or 23 kJ mol) less stable than the other. How much steric strain does a 1,3-diaxial interaction between two...

The mass of a newborn baby's brain has been found to increase by about 1.6 mg per minute. (a) How much does the brain's mass increase in one day? (b) How much time does it take for the brain's mass...

Protein synthesis in eukaryotes normally begins at the first AUG codon in the mRNA. Sometimes, however, the ribo-somes do not begin protein synthesis at this first AUG but scan past it (leaky...

Well-organized case managers eliminate the need for flexibility in their work. a. True b. False

Joaquin goes for a job interview and is surprised that the interviewer asks him about his personal standards regarding how he would handle certain situations. He expected that the focus would be on...

Using this ER-Diagram, write an SQL Statement using CONSTRAINTS command and show atleast 1 data of the database. Write down below the SQL Statements and commands that was used. PDiagnosis PAddress...

1. (a)(i) What problem has been brought about by uncontrolled mining of minerals in Kenya? (ii) Where is fluorspar mined in Kenya? (iii) Describe how trona is mined and processed in Magadi (b) (i)...

In 2001, a commercial aircraft lost all power while flying at 10,000 m over the Atlantic Ocean, about 100 km from the Azores Islands. The skilled pilot put the plane into a gliding mode and...

Domino's Pizza franchises in New York were sued by the state of New York in 2016for wage theft at 10 stores.Under New York law, a corporation and a franchiser are joint employers if they meet certain...

1. The December 31 cash baboce accordine to the accounting reconds is $3237830 and the bork statement cash bathoce for thot dite is 546.822.40. accounting tecerts an 53,465 iecoivent to seateritint...

You have just begun your summer internship at Omni Instruments. The company supplies sterilized surgical instruments for physicians. To expand sales, Omni is considering paying a commission to its...

Nassau County is located approximately 25 miles east of NewYork City. The data organized and stored in GlenCove include the appraised value, land area of the property in acres, and age, in years, for...

Does it take more time to be removed from an email list than it used to take? A study of 100 large online retailers revealed the following: a. Given that three or more clicks are needed to be removed...

You are working with the same experiment as in Problems 11.1 and 11.2. 1. Construct the ANOVA summary table and fill in all values in the table. 2. At the 0.05 level of significance, what is the...

The following information is based on independent random samples taken from two normally distributed populations having equal variances: Based on the sample information, determine the 95% confidence...

A decision maker wishes to test the following null and alternative hypotheses using an alpha level equal to 0.05: The population standard deviations are assumed to be known. After collecting the...

The owner of the A.J. Fitness Center is interested in estimating the difference in mean years that female members have been with the club compared with male members. He wishes to develop a 95%...