1) The oldest known fossil found in south Africa has been dated based on the decay...
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1) The oldest known fossil found in south Africa has been
dated based on the decay...
A fossil was dated using rubidium-87, which undergoes beta decay and has a half-life of 4.75x1010...
A fossil was dated using rubidium-87, which undergoes beta decay and has a half-life of 4.75x1010 years. Calculate the age of the fossil if (5.7x10^1)% of rubidium-87 remains in the sample. Report your answer with 2 significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: X10 Answer units Question 2 (1 point) Thallium-201 is used to diagnose heart disease. The half-life of thallium-201 is 72.9 hours. If a patient takes 7.7 ug,...
In 1947 a large collection of papyrus scrolls, including the oldest known manuscript version of the Old Testament, was found in a cave near the Dead Sea; they have come to be known as the “Dead Sea Sc...
In 1947 a large collection of papyrus scrolls, including the oldest known manuscript version of the Old Testament, was found in a cave near the Dead Sea; they have come to be known as the “Dead Sea Scrolls”. The scroll containing the book of Isaiah was dated in 1994 using the radiocarbon technique and it was found to contain between 75% to 77% of the initial level of carbon 14. Radioactive decay is modeled by the function m (t) =...
ReviewI Constants The technique known as potassium-argon dating is used to date volcanic rock and ash, and thus establish dates for nearby fossils like this hominid skull.(Figure 1) The potassi...
ReviewI Constants The technique known as potassium-argon dating is used to date volcanic rock and ash, and thus establish dates for nearby fossils like this hominid skull.(Figure 1) The potassium isotope "0K has a 1.28-billion-year half-life and is naturally present at very low levels. Its most common decay mode is beta-minus decay into the stable isotope 40 Ca, but 10.9% of its decays are beta-plus which result in the creation of the stable isotope 40 Ar. The high temperatures in...
I need help with questions 1 through 2, thank you! The Esatina salamanders (Ensatina eschscholtzii), shown...
I need help with questions 1 through 2, thank you!
The Esatina salamanders (Ensatina eschscholtzii), shown above, live along the West Coast of North America from Vancouver to Baja California. We will be focusing two populations: 1. individuals that live in Northern California and represent a more ancestral population 2. individuals that live in Southern California. Researchers have found that these all individuals of this salamander species have two color phenotype, either red or blotchy. Genetic analysis has shown that...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
there are 5 pictures attached to this question. The first picture which talk about P-R-O strategy...
there are 5 pictures attached to this question. The first
picture which talk about P-R-O strategy is the question itslef
which I want to know thw aswer. the next 4 pictures are useful
information that may help you to get the answer.
please answer to this question. I need to know ASAP
Increase in hominin brain size Task: Use the P-R-O strategy to construct a theory-based explanation for a puzzling problem. Refer to the handout you received in lecture to...
CASE 5 PANTRY MARKETS Pantry Markets is a medium-sized southeastern grocery chain head- quartered in Tampa,...
CASE 5 PANTRY MARKETS Pantry Markets is a medium-sized southeastern grocery chain head- quartered in Tampa, Florida. Sales for the chain have been growing at an average rate of 20% per annum; the chain opened four new stores last year. Although Mr. Carl Royal, president of Pantry Markets, is modest about his achievements, the grocery chain has been increas ingly recognized as a strong competitor in several markets. "In a nutshell," Mr. Royal says, "our marketing strategy over the years...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
What should have Merck & Co, Inc done differently in regards to river blindness? Merck &...
What should have Merck & Co, Inc done differently in regards to river blindness? Merck & Company, Inc.: Having the Vision to Succeed by Stephanie Weiss and David Bollier An Expensive Care for a Poor Market In 1978, Dr. P. Roy Vagelos, then head of the Merck research labs, received a provocative memorandum from a senior researcher in parasitology, Dr. William C. Campbell. Dr. Campbell had made an intriguing observation while working with ivennectin, a new antiparasitic compound under investigation...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge award significant damages for the mere fact of an employee's dismissal, or for the stigma that that dismissal brings? Or for the employer thereafter competing with the ex-employee for the clients, before the ex-employee has got a new job? B. Basic Facts [2] This is an appeal from 2009 ABQB 591 (CanLII), 473 A.R. 254. [3] Usually a judgment recites facts before law. But...
A fossil was dated using rubidium-87, which undergoes beta decay and has a half-life of 4.75x1010 years. Calculate the age of the fossil if (5.7x10^1)% of rubidium-87 remains in the sample. Report your answer with 2 significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: X10 Answer units Question 2 (1 point) Thallium-201 is used to diagnose heart disease. The half-life of thallium-201 is 72.9 hours. If a patient takes 7.7 ug,...
ReviewI Constants The technique known as potassium-argon dating is used to date volcanic rock and ash, and thus establish dates for nearby fossils like this hominid skull.(Figure 1) The potassium isotope "0K has a 1.28-billion-year half-life and is naturally present at very low levels. Its most common decay mode is beta-minus decay into the stable isotope 40 Ca, but 10.9% of its decays are beta-plus which result in the creation of the stable isotope 40 Ar. The high temperatures in...
I need help with questions 1 through 2, thank you!
The Esatina salamanders (Ensatina eschscholtzii), shown above, live along the West Coast of North America from Vancouver to Baja California. We will be focusing two populations: 1. individuals that live in Northern California and represent a more ancestral population 2. individuals that live in Southern California. Researchers have found that these all individuals of this salamander species have two color phenotype, either red or blotchy. Genetic analysis has shown that...
1. Oral acetaminophen has been ordered for a young child who has a fever. A liquid form has been obtained by the nurse to increase the chance of problem free administration. Prior to administration, the nurse is going through the rights of medication administration. When confirming the right dose, what term is the most appropriate? a. "160 mg" b. "one teaspoon" c. "one third of a tablespoon d. "SmL 2. A pregnant woman asks why she needs to take a...
there are 5 pictures attached to this question. The first
picture which talk about P-R-O strategy is the question itslef
which I want to know thw aswer. the next 4 pictures are useful
information that may help you to get the answer.
please answer to this question. I need to know ASAP
Increase in hominin brain size Task: Use the P-R-O strategy to construct a theory-based explanation for a puzzling problem. Refer to the handout you received in lecture to...
CASE 5 PANTRY MARKETS Pantry Markets is a medium-sized southeastern grocery chain head- quartered in Tampa, Florida. Sales for the chain have been growing at an average rate of 20% per annum; the chain opened four new stores last year. Although Mr. Carl Royal, president of Pantry Markets, is modest about his achievements, the grocery chain has been increas ingly recognized as a strong competitor in several markets. "In a nutshell," Mr. Royal says, "our marketing strategy over the years...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge award significant damages for the mere fact of an employee's dismissal, or for the stigma that that dismissal brings? Or for the employer thereafter competing with the ex-employee for the clients, before the ex-employee has got a new job? B. Basic Facts [2] This is an appeal from 2009 ABQB 591 (CanLII), 473 A.R. 254. [3] Usually a judgment recites facts before law. But...
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