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Using uranium-lead dating Note that the age of the igneous intrusion is approximately 5.46 billion years old.
How did we arrive at that ?
To calculate the age of the igneous intrusion,we can use the following equation.
t = n * t_1/2
where:
t = age of the igneous intrusion
n = number of atoms of lead-207
t_1/2 = half-life of uranium-235
t = 4,375 * 0.704 billion years / 625
= 5.46 billion years
So relative dating is a method of determining the relative age of rocks or other objects by comparing their position in a rock layer or other stratigraphic sequence.
In this case, the igneous intrusion is 5.46 billion years old. This is much older than the space probe, which was constructed in 1977.
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Related Questions
When Ann drives to school, she only passes one intersection with a stop light. Based on her previous experience, there is a 0. 70 probability that the light is green or yellow (she always goes on yellow!) and the outcomes on consecutive days are independent. If she drives to school 5 days, what is the probability that the light is red on all 5 days?
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Answer:
I think the answer is .15 just from looking at it in math terms, but i haven't learned about probability yet
Explanation:
The following code simulates the movement of a golf ball in the air after it's been hit. initialVelocity ← 44 accelFromGravity ← -9.8 x ← 0 y ← 0 t ← 0 REPEAT UNTIL (y < 0) { x ← initialVelocity * t; y ← (initialVelocity * t) + ((accelFromGravity * (t*t)) / 2) DISPLAY(x) DISPLAY(y) t ← t + 1 } Which statement best describes why this simulation is an abstraction?
Answers
Answer:
It leaves out details that do not effect the results as much, such as air resistance or golf ball material.
Explanation:
A simulation is an abstraction of a complex phenomena that captures the higher-level details that are necessary for the purposes of the simulation and excludes other details.
Help :) Two pigs with curly tails breed and have six offspring. One of the piglets has a straight tail. What is the most likely explanation for this?
That piglet has a different father than the others.
A genetic mutation occurred in the gamete.
Something the mother pig ate during pregnancy caused it.
Mitosis occurred with more than one division cycle.
Answers
Inherited traits, such as tail shape, are typically determined by genes passed down from the parents to their offspring. If both parent pigs have curly tails, it suggests that curly tail is the dominant trait in their genetic makeup. However, occasionally, genetic mutations can occur spontaneously, resulting in a change in the genetic information. These mutations can alter the expression of traits, leading to variations in the offspring.
In this case, it is likely that a genetic mutation occurred in the gamete (sperm or egg cell) of either the mother or the father pig, resulting in the piglet having a straight tail instead of the curly tail inherited from its parents. This mutation could have affected the genes responsible for tail shape, causing a deviation from the expected phenotype.
The other options mentioned—having a different father, the mother's diet during pregnancy, or multiple divisions in mitosis—do not typically explain the occurrence of a trait that deviates from the parents' traits in the same generation. Genetic mutations are a more plausible explanation for such variations in inherited traits.
How was our solar system formed?
You can explain with words or a diagram
Thanks
Answers
Answer:
The solar system formed about 4.5 billion years ago from a dense interstellar gas and dust cloud. Then, the cloud collapsed, possibly due to the shockwave of a nearby exploding star called a supernova. When this dust cloud collapsed, it formed a solar nebula – a spinning, swirling disk of material.
The nebular hypothesis is the most widely accepted model of how our solar system came to be. According to the model, the solar nebula—a region in a giant cloud of gas and dust—began to collapse and contract under its gravity about 4.6 billion years ago. The center of the cloud became hotter and hotter. Then, the system started to rotate as it got more desirable and condensed. This was the beginning of the solar system's formation.
Over time, the cloud formed the Sun and a protoplanetary disk that gradually coalesced to form planets and other objects. The Sun was born out of a concentration of kinetic energy and heat at the center, while debris rotating the nebula collided to create the planets.
Explain how the process of globalization contributed to the diffusion of sugarcane from its hearth of domestication.
Answers
The process of globalization has played a significant role in the diffusion of sugarcane from its hearth of domestication. Sugarcane is believed to have originated in Southeast Asia, and from there, it spread to other parts of the world through various channels, including trade, migration, and colonialism. Globalization, in its modern form, has accelerated the diffusion of sugarcane to different parts of the world, leading to its widespread cultivation and consumption.
One of the primary drivers of the diffusion of sugarcane was the global trade network that emerged in the 16th century. The European powers established trade routes to Asia, Africa, and the Americas, and in the process, they introduced sugarcane to different parts of the world. The Portuguese, for example, introduced sugarcane to Brazil, which would later become the largest producer of sugarcane in the world. The Spanish, on the other hand, introduced sugarcane to the Caribbean, which would become another major sugarcane-producing region.
Another factor that contributed to the diffusion of sugarcane was the movement of people. Globalization facilitated the movement of people from one part of the world to another, and in the process, they brought with them their cultural practices, including agriculture. The Indian indentured laborers, for example, were brought to the Caribbean in the 19th century to work on sugarcane plantations. They brought with them their knowledge of sugarcane cultivation and processing, which contributed to the growth of the industry in the region.
Finally, colonialism played a significant role in the diffusion of sugarcane. The European powers established colonies in different parts of the world and used their resources to cultivate cash crops, including sugarcane. The British, for example, established sugarcane plantations in India, which would become another major producer of sugarcane in the world. Similarly, the French established sugarcane plantations in Mauritius, which would become a major producer of refined sugar.
In conclusion, the process of globalization has contributed significantly to the diffusion of sugarcane from its hearth of domestication. The global trade network, movement of people, and colonialism have all played a role in the spread of sugarcane to different parts of the world. Today, sugarcane is one of the most widely cultivated and consumed crops in the world, with significant economic and cultural significance.
Link to the audio/video of the song is not relevant to the topic.
The process of globalization has played a significant role in the diffusion of sugarcane from its hearth of domestication. Sugarcane is believed to have originated in Southeast Asia, and from there, it spread to other parts of the world through various channels, including trade, migration, and colonialism. Globalization, in its modern form, has accelerated the diffusion of sugarcane to different parts of the world, leading to its widespread cultivation and consumption.
One of the primary drivers of the diffusion of sugarcane was the global trade network that emerged in the 16th century. The European powers established trade routes to Asia, Africa, and the Americas, and in the process, they introduced sugarcane to different parts of the world. The Portuguese, for example, introduced sugarcane to Brazil, which would later become the largest producer of sugarcane in the world. The Spanish, on the other hand, introduced sugarcane to the Caribbean, which would become another major sugarcane-producing region.
Another factor that contributed to the diffusion of sugarcane was migration. Globalization facilitated the movement of people from one part of the world to another, and in the process, they brought with them their cultural practices, including agriculture. The Indian indentured laborers, for example, were brought to the Caribbean in the 19th century to work on sugarcane plantations. They brought with them their knowledge of sugarcane cultivation and processing, which contributed to the growth of the industry in the region.
Colonialism also played a significant role in the diffusion of sugarcane. The European powers established colonies in different parts of the world and used their resources to cultivate cash crops, including sugarcane. The British, for example, established sugarcane plantations in India, which would become another major producer of sugarcane in the world. Similarly, the French established sugarcane plantations in Mauritius, which would become a major producer of refined sugar.
In conclusion, the process of globalization has contributed significantly to the diffusion of sugarcane from its hearth of domestication. The global trade network, movement of people, and colonialism have all played a role in the spread of sugarcane to different parts of the world. Today, sugarcane is one of the most widely cultivated and consumed crops in the world, with significant economic and cultural significance.
Happy to help, have a great day!
HLP :) Which of the following is the first phase of mitosis?
Telophase
Anaphase
Prophase
Cytokinesis
Answers
Which demographic transition stage has an age structure with the following characteristics: falling birth rates, falling death rates, small number of elderly people?
Stage 1
Stage 2
Stage 3
Stage 4
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Answer:
Explanation:
The demographic transition stage that typically exhibits the characteristics of falling birth rates, falling death rates, and a small number of elderly people is Stage 2 of the demographic transition model.
In Stage 2, a society experiences significant improvements in healthcare, sanitation, and living standards. These advancements lead to a decline in mortality rates as diseases are better controlled, and access to healthcare improves. However, birth rates remain high, resulting in a rapid population growth.
During this stage, the age structure of the population tends to be dominated by young individuals, as the decline in mortality rates leads to a larger proportion of children surviving to reproductive age. The number of elderly people in the population remains relatively small because the declining birth rates have not yet resulted in a significant aging population.
It is important to note that the demographic transition model is a simplified representation of population dynamics, and real-world scenarios can have variations and overlap among stages. Additionally, different countries or regions may progress through the stages at different rates and have unique demographic patterns.
Answer:
Stage 2
Explanation:
Why did Adichie tell the student that it was a shame that young
Americans were serial murderers?
Answers
Chimamanda Ngozi Adichie, a Nigerian-born author, explained how stereotypical judgments are harmful because they are incomplete in her TED Talk, "The Danger of a Single Story," in July 2009 and European.
Thus, Many of these anecdotes are drawn from her own life experiences, such as how, as a young child, she only read European literature, which led her early writing to be more European in influence than of her own origin.
By drawing on the audience's historical and political circumstances, citing her own credibility as a Nigerian writer, and combining comedy and sympathy, the speech is emotional, witty, logically brief, and clearly conveys the point and European.
Adichie used these rhetorical devices in her speech to educate and entertain her audience while also professing her message of inclusivity and gaining their trust and strerotype.
Thus, Chimamanda Ngozi Adichie, a Nigerian-born author, explained how stereotypical judgments are harmful because they are incomplete in her TED Talk, "The Danger of a Single Story," in July 2009 and European.
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Imagine you are interested in finding out how much time it takes on average to walk from one end of your school to the next. You’ve decided to figure this out on your lunch break and are able to complete the walk 20 times what would your algorithm look like where could a loop show up? Note: you do not have to write your algorithm in a programming language. You can write it out in English or in pseudocode code
Answers
Start a timer at one end of the school.
Walk at a normal pace to the other end of the school while timing the walk with the timer.
Stop the timer once you reach the other end of the school.
Record the time taken to walk from one end of the school to the other.
Repeat steps 1-4 twenty times.
Calculate the average time taken by adding up the recorded times and dividing by 20.
A loop could show up in step 5, where the process of walking from one end of the school to the other and recording the time is repeated 20 times. This could be accomplished using a for loop in a programming language, where the loop would run 20 times, with each iteration representing a walk from one end of the school to the other.
A country has the following population statistics: CBR = 1. 0% CDR = 1. 0% immigration = 1. 0% emigration = 2. 0% What is the growth rate of the population in this country? T: (CBR + Immigration) - (CDR + Emigration) = Population Growth Rate A. 5% B. 10% C. - 18% D. -1. 0%
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Answer:
-1.0%
Explanation:
T: (CBR + Immigration) - (CDR + Emigration) = Population Growth Rate
Substituting the given values, we get:
T: (1.0% + 1.0%) - (1.0% + 2.0%) = Population Growth Rate
T: 2.0% - 3.0% = -1.0%
I need help with this. its music theory
Answers
In music theory, identifying the first chord typically involves analyzing the key and tonality of the piece.
Here are some steps to help you determine the first chord:Determine the key signature: Look for sharps (#) or flats (b) in the key signature at the beginning of the staff.
Identify the tonic: The first chord is usually the tonic chord, which is built on the first note of the key. This chord often provides a sense of resolution and stability.
Consider the harmony and chord progression: Analyze the following chords and their relationships to identify the initial tonic chord.
Listen for tonal cues: Pay attention to the overall tonality, melody, and cadences to support your chord identification.
Remember, identifying the first chord may require careful analysis and contextual understanding of the piece's key and progression.
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