if an object is given an initial velocity in any direction and then allowed to travel freely under gravity only, it is called a projectile motion. \(\pmb{ }\)
\(\sf~~~~~~~~~~~~~~~{\red{\underbrace{\underline{\color{gold}{projectile~motion}}}}}\)
Projectile motion is a form of motion in which object or particle ( called a projectile , is thrown near earth's surface and it moves along a curved path under the action of gravity only.
Which of the following best explains the reason why different layers of Earth (the core, the crust, and the mantle) are chemically distinct? Select the correct answer below: Earth formed in distinct stages corresponding to each layer, so the chemical makeup of each layer matches the chemical makeup of the interplanetary dust at the time of formation. The deeper the layer, the more nuclear fusion occurs; hence, the elements in the core are denser than those in the mantle, which are denser than those in the crust. The planet was initially a uniform mixture of chemicals that have been undergoing reactions toward a common mixture of products. The hotter core is farther along than the mantle due to a higher reaction rate, and both are farther along than the crust. In the past, when the planet was molten, chemicals separated by density due to the effect of gravity.
The reason why different layers of the Earth are chemically distinct is because, in the past when the planet was molten, chemicals separated by density due to the effect of gravity.
The Earth's layers—core, mantle, and crust—are chemically distinct due to a process called chemical differentiation, which occurred during the early stages of the planet's formation. When the Earth was in its molten state, heavy elements and compounds sank towards the center due to their higher density, while lighter elements and compounds rose towards the surface. This separation by density created distinct layers with different chemical compositions.
The core, located at the center of the Earth, consists mainly of iron and nickel, which are dense elements. This is because during the differentiation process, these heavy elements sank towards the core, forming a dense metallic region. The mantle, which surrounds the core, is composed of silicate minerals rich in elements like magnesium and iron. Finally, the crust, which is the outermost layer, primarily consists of lighter elements such as oxygen, silicon, aluminum, and other minerals.
The process of chemical differentiation occurred as a result of gravity, which caused the denser materials to sink towards the center and the lighter materials to rise towards the surface. This phenomenon is similar to how oil separates from water due to their different densities. Over time, as the Earth cooled and solidified, the distinct chemical compositions of the layers were preserved.
In summary, the chemical distinctiveness of the Earth's layers is a result of the separation of materials by density during the molten stage of the planet's formation. This process, driven by gravity, led to the formation of the core, mantle, and crust with their respective chemical compositions.
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What is the greatest fear that Canadians have about their relationship with the United States?
Answer:
that Canada's identity will be lost in the shadow of its larger neighbor
Explanation:
Canada always feared the US might overshadow them; people will forget about their identity
Hi. Can anyone help me out here? I need to find the latitude and longitude. PLEASE HELP ME! FIND THE LATITUDE AND LONGITUDE FOR NUMBERS 1 -20 using the attachment I provided below. THANK YOU AND GOD BLESS TO WHOEVER HELPS ME OUT. :)
Ps. Sqdancefan, if you are reading this, help me out!
Answer:
1. 0 N 0 E
11. 40 N 60 E
12. 40 N 120 W
18. 24 S 30 W
17. 50 S 90 E
Explanation:
Follow a horizontal line to the left side of the map to see the latitude north or south. In some cases (16, 17, 18, 20), interpolation is required. You have to make an estimate of the fraction of the distance the point is between lines that are 20° apart.
For the longitude, the same process is followed. Follow the longitude lines to the top of the map to the scale indicating east or west longitude. Some interpolation is required there, too.
A few examples are listed above to give you the idea.
Approximately how many construction craft training programs does NCCER offer?
This dynamic programme has grown to include curricula for over 70 craft and maintenance areas as well as a full set of over 70 tests that are accessible in more than 6,000 NCCER-accredited training and assessment locations across the United States.
What basic craft skills are covered in the NCCER core curriculum?In United States basic safety, an introduction to construction math, an introduction to hand and power tools, an introduction to construction drawings, an introduction to basic rigging, an introduction to basic communication skills, an introduction to employability skills, and an introduction to material handling are some of the significant topics covered in the course .
What is United States Center for Construction Education and Research?Its acronym is NCCER, or National Center for Construction Education and Research. With the help of more than 125 construction CEOs and academic leaders, NCCER was established in 1996 as a leading non-profit education foundation organisation in United States.
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Which best describes the relationship between the United States and oil?
A. The United States uses less oil than any industrialized country.
B. The United States is the second-largest producer of oil in the
world.
C. The United States imports very little oil from the Middle East.
D. The United States is the 10th-largest user of oil in the world.
SUBMIT
The relationship between the United States and oil is the United States is the second-largest producer of oil in the world. Thus, option B is correct.
Why oil production is important?Crude oil is used to make petrol. Additionally, lubricating oil is used to maintain the proper operation of all the machinery's moving parts and to prevent our car engines from overheating. In fact, without oil, the world would practically come to a complete stop.
Manufacturing would cease. Cars would also. There would be no flying. On the farm, tractors would rust and sputter to a stop. And if heated by oil, people's homes and workplaces would freeze in the winter. Oil is an ingredient in many goods. Just a few instances are shown below: fertilizers for farms, nylon garments, cosmetics, detergents, and plastic toys and other products. Even chewing gum wax is created from oil.
Therefore, we can conclude that option B is correct.
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In Australia discuss the quantity and quality of services and material goods and how this contributes to Australia’s wellbeing?
Australia is a world-class provider of education and tourism, professional services, financial services, energy and mining-related services, and environmental services. Australia prioritizes these industries in order to enhance access to overseas markets.
Australia's most valued export is iron ore, which is followed by coal, gold, and hydrocarbon. These exports alone generate $48.2 billion, $47 billion, $29.1 billion, and $20.3 billion. Of course, the state also ships other notable things such as food, wine, and automobiles. These exports help to sustain Australia's economy thus improving its well-being.
What are goods and services?Goods are often tangible goods such as pens, actual books, salt, apples, and caps. Services are actions performed by others, such as architects, suppliers, and contractors.
Computers, furniture, phones, bags, and apples are examples of products. Therapy sessions, babysitting, surgeries, home cleaning, haircuts, and legal guidance are examples of services.
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Most deserts occur at approximately 30° latitudes. Which of the following statements BEST reflects this finding?
Trade winds pull all moisture away from land and to the ocean at 30° latitude.
Warm dry air descends at 30° latitude.
Cool dry air descends at 30° latitude.
Westerlies pull all moisture away from land and to the ocean at 30° latitude.
As most deserts occur at approximately 30° latitudes, the best statement that reflects this finding is cool dry air descends at 30° latitude.
A desert refers to a barren area of landscape which is characterized by little precipitation and, consequently, living conditions are hostile for plant and animal life. Deserts cover over one-fifth of the Earth's land area, and they are found on every continent. It is a place that receives less than 10 inches (25 centimeters) of rain per year and belongs to a wider class of regions called drylands. Most deserts are found along the 30-degree latitude line due to the pattern of cold-water currents, which force cool dry air over the land at 30°.
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Grade & Section:
Score:
Date:
Learning Task #1 Chemical Reaction
Directions: Choose the letter of the correct answer and write it in your answer sheet.
1. A Chemists shorthand way of representing chemical reaction.
A. chemical property B. Formula
C. Symbol
D. Equation
2. When acid and base react with each other, it produced water and
A. Salt
C. Fire D. Smoke
3. A process in which one or more substances are converted to one or more different
substances is called chemical?
B. Carbon dioxide
A. Formula
C. Reaction
B. Equation
D. Symbol
Any substance that is present at the start of chemical reaction.
A. Product B. Reactant
C. Symbol
D. Arrow sign
4.
5. The arrow sign in the chemical equation is read as C. will formed
A. added to B. combined with
D. creation of precipitate
6. A number written in the lower right side of the chemical formula, shows the number of atoms of each type in the molecules.
A. coefficient
C. subscript
B. superscript D. parenthesis
7. State that the total mass of the reactant must be equal to the total mass in the product.
A. Law of gravity B. Law of reflection
C. Law of interaction D. Law of conservation of mass
8. A numerical number attached in front of the chemical formula, denotes the number of
molecules or mole in a compound.
A. coefficient B. subscript
C. superscript
D. molecules 9. A method used to balance out the number of each element in both side of the
equation.
A. Redox reaction
C. Inspection method
B. Valence number
D. None of the above
10. It is used to form subgroups of atoms within a molecule.
A. coefficient
B. subscript
C. superscript D. parenthesis
A chemical reaction is a process that involves the transformation of one or more substances into different substances.
It occurs when chemical bonds between atoms are broken and new bonds are formed. During a chemical reaction, the atoms are rearranged, resulting in the formation of new compounds or molecules.
Following options are the correct answer from the list,
1. The correct answer is D.
2.The correct answer is A.
3.The correct answer is C.
4.The correct answer is B.
5.The correct answer is A.
6.The correct answer is B.
7.The correct answer is D.
8.The correct answer is A.
9.The correct answer is D.
10.The correct answer is D.
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evidence that the earths surface is moving
Rank the following maps and geospatial technologies in terms of their privacy concerns, listing them from
greatest privacy concern to least privacy concern
A. geotagging, volunteered geographic information, mashup, citizen science, Mercator
B. Mashup, geotagging, citizen science, volunteered geographic information, Mercator projection
C. Mercator projection, Robinson projection, GPS, GIS, geotagging
D. Robinson projection, geotagging, GPS, GIS, Goode Homolosine projection
E. GPS, GIS, volunteered geographic information, mental maps, geotagging
Answer:
E. GPS, GIS, volunteered geographic information, mental maps, geotagging
Explanation:
All these are geospatial technologies and are related to positioning and the use of satellite data to track and map the location which is a privacy concern for the individual and the organization. The above are ranked on the basis of the privacy concerns and include the GPS, followed by gis and other geographic information to geotagging.Answer:
A. geotagging, volunteered geographic information, mashup, citizen science, Mercator projection
Explanation:
Find the value of x.
12
B
С
Answer:
... there isnt an equation.. ill answer once u edit the question
Explanation:
If you are standing north of a smokestack and smoke from the stack is drifting over your head, the wind would be called a ____ wind. a) north b) south
If you are standing north of a smokestack and smoke from the stack is drifting over your head, the wind would be called a south wind. Option A.
A smokestack is an upright chimney used in factories to produce smoke that is driven by high temperatures. It produces smoke that is visible from a distance and is released into the air. If the wind is drifting smoke from a smokestack over your head, it's an indication of a south wind.
It is essential to note that the direction of the wind is the direction the wind is blowing from rather than the direction the wind is blowing to. In this case, since the smoke is blowing towards the north, it is an indication of a south wind. Therefore, the wind would be called a south wind. Therefore option A is correct.
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a. Why do most Native Americans live in such concentrated groups in the American Northwest?
Please help I don’t get this
Answer:
Because they were forced out of the rest of the nation by European settlers, and then later Americans. They live in such concentrated groups because when America had nowhere left to move them they created indian reserves for Native americans to live on.
Explanation:
How would a Paleozoic ocean be different than an ocean today? How would it be the same?
Answer:
The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land.
Life in the Paleozoic
The Paleozoic began with the Cambrian Period, 53 million years best known for ushering in an explosion of life on Earth. This "Cambrian explosion" included the evolution of arthropods (ancestors of today's insects and crustaceans) and chordates (animals with rudimentary spinal cords).
In the Paleozoic Era, life flourished in the seas. After the Cambrian Period came the 45-million-year Ordovician Period, which is marked in the fossil record by an abundance of marine invertebrates. Perhaps the most famous of these invertebrates was the trilobite, an armored arthropod that scuttled around the seafloor for about 270 million years before going extinct.
Answer:
The Paleozoic Era, which lasted around 542 million years and ended 251 million years ago, was a period of significant change on Earth. The era started with the disintegration of one supercontinent and the emergence of another. Plants spread over the world. And the earliest vertebrate animals began to inhabit the land.
The Paleozoic Era
The Paleozoic Era began with the Cambrian Period, which lasted 53 million years and is best remembered for ushering in an explosion of life on Earth. The evolution of arthropods (ancestors of today's insects and crustaceans) and chordates was part of the "Cambrian boom" (animals with rudimentary spinal cords).
Life flourished in the waters during the Paleozoic Era. Following the Cambrian Period was the 45-million-year Ordovician Period, which is distinguished by an abundance of marine creatures in the fossil record.The trilobite, an armored arthropod that scurried over the seafloor for nearly 270 million years until becoming extinct, was perhaps the most famous of these invertebrates.
Explanation:
which pair of geologists propose mid ocean ridges?
a. holmes and wilson
b. benioff and wadati
c. wilson and wegener
d. dietz and hess
Answer: D. Hess and Dietz
Explanation:
I looked it up.
A pair of dietz and hess geologists propose mid ocean ridges were the two scientist who proposed the theory of seafloor spreading hypothesis. This new crust is formed due to igneous intrusions.
The two geologists prepare a detailed map of ocean floor is credited with producing one of the world's first comprehensive maps of the ocean floor.Transformed a once barren and flat landscape into a dynamic three-dimensional space with valleys, trenches and mountains.
The mid-ocean ridge found in the ninteenth century when the first trans-Atlantic cable was laid. Mid-ocean ridges was created by forming at divergent plate boundaries.
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What are the features of Himalaya...5-7points
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products
lol
What is "climate change" according to the UN? 1. Hot and rainy seasons II. Average change in physical factors in weather over a period of 2 years III. Average change in global temperature and precipitation due to human economic activity
The average change in global temperature and precipitation patterns over a long period of time, mostly brought on by human economic activity, is referred to as "climate change" by the United Nations.
It is not just restricted to dry, hot seasons or a brief shift in weather patterns over a few years.The appropriate choice is thus:
III. Global temperature and precipitation changes on average as a result of human economic activity
Long-term changes in weather patterns and the earth's temperature that are predominantly brought on by human activity, especially the release of greenhouse gases into the atmosphere, are referred to as climate change.
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In ancient times, the spice routes mainly passed through what ocean?.
Answer:
Arab traders — mainly descendants of sailors from Yemen and Oman — dominated maritime routes throughout the Indian Ocean, tapping source regions in the Far East and linking to the secret "spice islands" (Maluku Islands and Banda Islands).
Explanation:
What are the two major drainage systems in the United States?
Answer:
1. Pacific Northwest Basin
2. California River Basin
3. Great Basin
4. Lower Colorado River Basin
5. Upper Colorado River Basin
6. Rio Grande River Basin
How does geographic scale differ from scale of data?
Answer:
Geographic scale is “scale” in the sense you may be used to in everyday life, referring to the general scope or extent of things.In the cartographic sense, “small scale” means more “zoomed out” than large scale. Scale on a map is defined mathematically, often expressed as a representative fraction.
How have countries in East Asia attempted to address their overpopulation issue? in one paragraph please!!
Answer:
East Asia attempted to control their population issue by having the "one child" policy ,but because of gender imbalancement they allowed another child to be born ,allowing people to have 2 kids.
Description In order to support the demand for transportation in Miami- Dade County, do you think that the County should expand Metrorail or bus network/system? Why?
In Miami-Dade County, the expansion of the Metrorail or bus network/system would help to support the demand for transportation.
While there are pros and cons to both options, the decision ultimately depends on a variety of factors including cost, accessibility, and environmental impact. Expanding the Metrorail system would offer a fast and efficient way for residents to get around the county. However, it is also expensive and would require a significant investment of resources.
On the other hand, expanding the bus network would be less expensive and could offer greater accessibility to different parts of the county. However, it would be slower and less efficient than the Metrorail. In the end, the decision will depend on the priorities of the County and the needs of its residents. It may be necessary to consider a combination of both options to meet the needs of different communities and provide the most effective and sustainable transportation system possible.
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the death rotates 1600km per hour on average, how ever as we move away from the equator the speed of the rotation decreases. Give a valid hypothesis to support a given statement.
The valid Hypothesis to support the statement is The speed of the Earth's rotation decreases as we move away from the equator due to the effect of Earth's latitude on the Coriolis force.
The Coriolis force is a result of the Earth's rotation and causes moving objects to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This force influences the rotation speed of the Earth and its effect is stronger near the poles compared to the equator.
Based on this, a valid hypothesis could be that the speed of the Earth's rotation decreases as we move away from the equator due to the increasing influence of the Coriolis force. As we move closer to the poles, the Coriolis force becomes more significant, causing a decrease in the speed of rotation.
This hypothesis suggests that the rotation speed at the equator is higher compared to regions closer to the poles. It is supported by the understanding of the Coriolis force and its impact on the Earth's rotation. Further investigation and analysis of data, such as measurements of rotational speed at different latitudes, would be needed to confirm or refute the hypothesis.
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El Niño (La Niña) conditions are associated with warmer (colder) SSTs in the central and eastern Pacific. The threshold for an El Niño (La Niña) in the Nino3. 4 region is above 0.65°C (below -0.65°C).
El Niño (La Niña) conditions are characterized by changes in sea surface temperatures (SSTs) in the central and eastern Pacific.
During El Niño events, there is a warming of SSTs in these regions, while during La Niña events, there is a cooling. The Nino3.4 region, which is an area in the central and eastern Pacific, is used as a benchmark for determining El Niño (La Niña) conditions.The threshold for an El Niño event is when the SST anomaly in the Nino3.4 region is above 0.65°C, while the threshold for a La Niña event is when the SST anomaly is below -0.65°C.
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Do you know the planets?
Answer:
do you mean the planets in the universe or just in our solar system?
if your meant the latter then it’s: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Explanation:
If the dry bulb is 80, and the wet bulb is 70 what is the relative humidity
Answer:
10
Explanation:
Because 80-70=10 and the remainder was ten
Dry climates are found at
Answer:
Western North America
Australia Southern South America Central and Southern Africa Asia
Should we protect native British species against invasive species? Justify your view?
Answer:
I think yes, you should protect native British species because invasive species can be harmful to the land and they can destroy the envorment that the native species live in making the native species suffer and maybe go extinct. invasive species like the Asian carp, can also affect humans as well and have a domino effect on all surroundinglife around an invaded area. so yes, you should protect them.
How do you find the final speed in conservation of momentum?.
Answer:
For example, to find final velocity using momentum of an object, one can use equation of momentum that isP= mv where m is mass of object, P is momentum of object and v is velocity of object.
Because the land heats more quickly during the day than does the sea, winds blow to the land from the sea.
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean.
What is Sea breezes?A sea breeze, also known as an onshore breeze, is any wind that blows from a large body of water toward or onto a landmass; it is caused by differences in air pressure caused by the different heat capacities of water and dry land. As a result, sea breezes are more concentrated than prevailing winds.
Because of the unequal heating rates of land and water, sea breezes occur during hot summer days. The land surface heats up faster than the water surface during the day. As a result, the air above land is warmer than the air above the sea.
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