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The mass percent of carbon in a typical human is 18%, and the mass percent of...
The mass percent of carbon in a typical human is 18%, and the mass percent of...
The mass percent of carbon in a typical human is 18%, and the mass percent of 14c in natural carbon is 1.6 × 10-10%. Assuming a 185-lb person, how many decay events per second occur in this person due exclusively to the B-particle decay of 14c? For 14c, t1/2 = 5730 years Rate = beta particles/s
The carbon isotope 14C is used for carbon dating of archeological artifacts. 14C ( mass 2.34×10−26kg)...
The carbon isotope 14C is used for carbon dating of archeological artifacts. 14C ( mass 2.34×10−26kg) decays by the process known as beta decay in which the nucleus emits an electron (the beta particle) and a subatomic particle called a neutrino. In one such decay, the electron and the neutrino are emitted at right angles to each other. The electron ( mass 9.11×10−31kg ) has a speed of 5.7×107 m/s and the neutrino has a momentum of 6.9×10−24 kg⋅m/s ....
1. The remains of a pre-historic human are found. The mass of carbon in the sample...
1. The remains of a pre-historic human are found. The mass of carbon in the sample is 8.5kg. The activity i.e. the number of decays per second is 700 decays/second. In living matter the ratio of 14c/?C=1.3. 10-12 14C is radioactive, whereas 12C is stable. Carbon's atomic mass is 12g per 6.02.102 atoms. The halflife of carbon is 5730 years. Make sure to label the different parts of your answer! a) How many carbon atoms are in the sample? b)...
please complete the questions has not answering with clarification of the answer to any page Name...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
1. Which of the following are the sites within the human body where carbon dioxide and...
1. Which of the following are the sites within the human body where carbon dioxide and oxygen are exchanged? A. Alveoli B. Arteries C. Synapses D. Venules 2. Which of the following describes the most important reason for repeating an experimental investigation? A. To verify the validity of the original findings B. To expand upon the original investigation C. To manipulate the independent variable D. To attempt to disprove the hypothesis 3. Lithium has an atomic number of 3 and...
Evaluate the arical writ the response in which you state your agreement or disagreement with writer...
Evaluate the arical
writ the response in which you state your agreement or disagreement
with writer up un these questions guidelines
1) can empathy lead us astrary? how
2) our heart will always go out to the baby in the well, its a
measure of our humanity. but empathy will have to yield to reason
if humanity is to have a future can empathy yield to reason?
how?
thank you
The Baby in the Well: The Case against Empathy* -Paul...
Need answers. thank you VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
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...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
The mass percent of carbon in a typical human is 18%, and the mass percent of 14c in natural carbon is 1.6 × 10-10%. Assuming a 185-lb person, how many decay events per second occur in this person due exclusively to the B-particle decay of 14c? For 14c, t1/2 = 5730 years Rate = beta particles/s
1. The remains of a pre-historic human are found. The mass of carbon in the sample is 8.5kg. The activity i.e. the number of decays per second is 700 decays/second. In living matter the ratio of 14c/?C=1.3. 10-12 14C is radioactive, whereas 12C is stable. Carbon's atomic mass is 12g per 6.02.102 atoms. The halflife of carbon is 5730 years. Make sure to label the different parts of your answer! a) How many carbon atoms are in the sample? b)...
please complete the questions has not answering with
clarification of the answer to any page
Name Lab Section _Date The Mole Concept and Atomic Weights The purpose of this activity is to better understand the concepts of relative atomic mass, counting by weighing and the mole. Percent composition and average atomic mass are included. Part I. Relative Atomic Masses and the Mole - Early Method When John Dalton proposed his atomic theory, he stated that the atoms of each element...
Evaluate the arical
writ the response in which you state your agreement or disagreement
with writer up un these questions guidelines
1) can empathy lead us astrary? how
2) our heart will always go out to the baby in the well, its a
measure of our humanity. but empathy will have to yield to reason
if humanity is to have a future can empathy yield to reason?
how?
thank you
The Baby in the Well: The Case against Empathy* -Paul...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
JOHNSON & JOHNSON AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF EARNINGS (Dollars and Shares in Millions Except Per Share Amounts) (Note 1)* 2016 71,890 21,789 50.101 20,067 9.143 29 Sales to customers Cost of products sold Gross profit Selling, marketing and administrative expenses Research and development expense In-process research and development Interest income Interest expense, net of portion capitalized (Note 4) Other (income) expense, net Restructuring (Note 22) Eamings before provision for taxes on income Provision for taxes on income (Note 8)...
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