Explain in 4-6 sentences how radioactive 14C is used to determine the age of objects uncovered...
Explain in 4-6 sentences how radioactive 14C is used to determine the age of objects uncovered in archaeological
excavations. Which types of artifacts can have their age determined in this way, and which types of artifacts cannot?
Homework Answers
The process is called radioactive dating and uses 14 C
It is an isotope of carbon, its presence in organic material gives the idea of age.
It has a half life of 5730 years and decays into nitrogen 14.
The primary source is cosmic ray action on nitrogen in atmosphere.
The method uses 14 C to find the age of carbonaceous materilas. It mainly counts number of disintegrations per minute.
This method can only be used to find the age of organic materials.
non organic materials can not be dated such as salts, metals elemental compounds etc.
Add Answer to:
Explain in 4-6 sentences how radioactive 14C is used
to determine the age of objects uncovered...
1. Carbon-14 is a common technique used to determine the age of organic artifacts. What percent...
1. Carbon-14 is a common technique used to determine the age of organic artifacts. What percent of carbon-14 isotope remains in a wooden artifact that is 30,000 years old? (t 1/2 = 5730 years) 2. A patient recieves radioactive Iodine-125 (t 1/2 = 57 days). The dosage they recieve has a decay rate of 3.7 x 106 dps. The custom stations at the border to Canada have radioactive detection devices that can detect radiation levels as low as 1000. dps....
how do you explain what an isotope is? also, is radioactive decap used to find the absolute or relative age of a rock? explain. “decay” not “decap”... that was a typo
how do you explain what an isotope is? also, is radioactive decap used to find the absolute or relative age of a rock? explain. “decay” not “decap”... that was a typo
The sound waves used in speech have wavelengths of a few meters. Explain in 4-6 sentences...
The sound waves used in speech have wavelengths of a few meters. Explain in 4-6 sentences why some of the sound waves emerging from a person’s mouth go to the sides so that they can be heard even if listeners are not in front of the person. Include any relevant diagrams and equations.
. In a paragraph of 4 - 6 sentences, explain how to solve for K such...
. In a paragraph of 4 - 6 sentences, explain how to solve for K such that the point K, 310 will be on the unit circle.
QUESTION 2 Radiocarbon dating is used to determine the age of organic materials. Living objects have...
QUESTION 2 Radiocarbon dating is used to determine the age of organic materials. Living objects have a consistent amount of carbon-14 in their systems due to the fact that they are constantly incorporating new carbon into their systems and C-14 is being constantly generated by our atmosphere. When an organism dies, it stops incorporating C-14 into its system and the C-14 that was present undergoes a first order kinetic decay. The half life of carbon 14 is 57 15 years...
4. Which of the following sentences is FALSE (only one correct answer): O O O O...
4. Which of the following sentences is FALSE (only one correct answer): O O O O Full cost comprehends all the resources used for a determined cost object. The "traditional" allocation bases allocate the indirect costs apportioned to the use of direct resources, that means proportional to volume. Direct costs are attributable to a cost object in an objective way. The full cost of production comprehends the cost of raw materials, transformation costs ar a fair share of the period...
Consider the following Scala code that uses classes, objects, inheritance and dynamic method binding abstract class...
Consider the following Scala code that uses classes, objects, inheritance and dynamic method binding abstract class A { def m) Int 1 val a Int = 2 class B extends A { val b: String "one" override def m() : Int = 3 def n(): Int 4 class C extends A { val x : Int 5 override def m() : Int = 6 val array an array of ten A objects array (5) val obj: A obj.m() = (a)...
Why can Koch’s Postulates NOT be used to determine causative agent of AIDS? How was it...
Why can Koch’s Postulates NOT be used to determine causative agent of AIDS? How was it determined that HIV causes AIDS? Watch the video “HIV Life Cycle” at https://www.biointeractive.org/classroom-resources/hiv-life-cycle. List 3 virulence factors of HIV and explain in which stage of pathogenesis (exposure, adhesion, invasion, infection, and transmission) the virulence factors are used.
3. A researcher was interested in understanding how the age of oeset (ie., age at which juveniles...
3. A researcher was interested in understanding how the age of oeset (ie., age at which juveniles were arrested for the offense the very first time) would vary by ethnicity. comparison between Hispanic and White juveniles. She perfonned statistical analysis of collected and obtained the following results, Specifically, she would like to make a the data she Using information from the above two tables, answer the following questions. a. (1.5 points) What level of a has been used in this...
The answer is A, Can you please explain how he got the answer thanks 6. You...
The answer is A, Can you please explain how he got the answer
thanks
6. You have estimated the following equation using OLS: = 33.75 +1.45M ALE, where y is annual income in thousands and MALE is an indicator variable such that it is 1 for males and 0 for females. According to this model, what is our prediction for the average income for females? a) $33,750 b) $35,200 c) $32,300 d) cannot be determined
QUESTION 2 Radiocarbon dating is used to determine the age of organic materials. Living objects have a consistent amount of carbon-14 in their systems due to the fact that they are constantly incorporating new carbon into their systems and C-14 is being constantly generated by our atmosphere. When an organism dies, it stops incorporating C-14 into its system and the C-14 that was present undergoes a first order kinetic decay. The half life of carbon 14 is 57 15 years...
4. Which of the following sentences is FALSE (only one correct answer): O O O O Full cost comprehends all the resources used for a determined cost object. The "traditional" allocation bases allocate the indirect costs apportioned to the use of direct resources, that means proportional to volume. Direct costs are attributable to a cost object in an objective way. The full cost of production comprehends the cost of raw materials, transformation costs ar a fair share of the period...
Consider the following Scala code that uses classes, objects, inheritance and dynamic method binding abstract class A { def m) Int 1 val a Int = 2 class B extends A { val b: String "one" override def m() : Int = 3 def n(): Int 4 class C extends A { val x : Int 5 override def m() : Int = 6 val array an array of ten A objects array (5) val obj: A obj.m() = (a)...
3. A researcher was interested in understanding how the age of oeset (ie., age at which juveniles were arrested for the offense the very first time) would vary by ethnicity. comparison between Hispanic and White juveniles. She perfonned statistical analysis of collected and obtained the following results, Specifically, she would like to make a the data she Using information from the above two tables, answer the following questions. a. (1.5 points) What level of a has been used in this...
The answer is A, Can you please explain how he got the answer
thanks
6. You have estimated the following equation using OLS: = 33.75 +1.45M ALE, where y is annual income in thousands and MALE is an indicator variable such that it is 1 for males and 0 for females. According to this model, what is our prediction for the average income for females? a) $33,750 b) $35,200 c) $32,300 d) cannot be determined
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago