What is the momentum of a 100 kg football player running at a velocity of 4 m/s?
a) 400 kg·m/s
b) 200 kg·m/s
c) 40 kg·m/s
d) 800 kg·m/s
Answers
Momentum can be defined as the product of mass and velocity. It is a vector quantity and is measured in kilogram-metres per second (kg m/s). It is denoted by the letter ‘p.
'Formula to calculate momentum is given as;p = mvwherep is momentumm is massv is velocityAccording to the problem,The mass of the football player, m = 100 kgVelocity of the football player, v = 4 m/sTo find the momentum of the football player, we need to substitute the given values into the formula of momentum;p = mv= 100 kg x 4 m/sp = 400 kg m/sTherefore, the momentum of a 100 kg football player running at a velocity of 4 m/s is 400 kg·m/s, which is option A.
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Related Questions
most earthquakes are a result of group of answer choices a sudden change in atmospheric pressure. mantle upwelling. erosion of bedrock. movement of rocks along faults.
Answers
Most earthquakes are a result of the movement of rocks along faults, not atmospheric pressure changes or erosion of bedrock. Mantle upwelling can sometimes cause seismic activity, but it is not a common cause of earthquakes.
Most earthquakes are a result of the movement of rocks along faults. While terms like "atmospheric" and "upwelling" are relevant in other contexts, they are not directly associated with the primary cause of earthquakes.Most earthquakes are a result of the movement of rocks along faults. Earthquakes occur when stress builds up in the Earth's crust and eventually causes the rocks along a fault to break or slip, releasing energy in the form of seismic waves. These waves propagate through the Earth, causing the ground to shake and resulting in the earthquake that we feel at the surface.While atmospheric pressure changes, mantle upwelling, and erosion of bedrock can all contribute to stress changes in the Earth's crust, they are not the primary cause of earthquakes. The movement of rocks along faults is a natural and ongoing process that occurs as a result of plate tectonics and the shifting of the Earth's crust. Earthquakes can occur anywhere in the world, but they are most common in areas where tectonic plates are actively colliding or sliding past each other, such as along the Pacific Ring of Fire. Understanding the causes and patterns of earthquakes is important for mitigating their impacts and improving our ability to predict and prepare for them.
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Based on your knowledge of Latin America, which conclusion regarding human interaction with
the environment is accurate?
A Most urban centers are located in the interior.
B Ranching and herding is the chief industry of Peru.
C Commercial farming occurs mostly along the coasts.
D Much of the Brazillian forestry industry uses the Amazon River.
Answers
Answer:D
Explanation:
Brazilian forest uses the amazon river
humans interaction with environment
The conclusion regarding human interaction with the environment that is accurate is "much of the Brazillian forestry industry uses the Amazon River".
The Amazon rainforest is the largest intact forest on the planet. In Brazil alone, it is home to more than 24 million people, including hundreds of thousands of Indigenous Peoples from 180 different groups.
In addition to its unparalleled diversity of life, the Amazon plays an important role in environment control. The rainforest contributes approximately $8.2 billion to the Brazilian economy each year through products such as rubber and timber.
The correct answer is option D.
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Advection fog
a. occurs when warm air passes over a cool surface.
b. is the result of adiabatic cooling.
c. rarely travels more than 100 meters from its point of origin.
d. is responsible for the Tule fog of the Central Valley of California.
Answers
Advection fog occurs when warm air passes over a cool surface. So, the correct answer is option a.
This type of fog is formed when the warm, moist air from the sea or a large body of water moves over a cooler surface such as land or ice. The moisture in the air condenses into tiny water droplets, forming a thick fog that can reduce visibility to just a few meters.
Advection fog is the result of adiabatic cooling, which happens when warm air rises and expands, causing it to cool down. As the air cools, its moisture content condenses into fog. This type of fog is typically found in coastal areas, where the sea temperature is colder than the air temperature.
Advection fog rarely travels more than 100 meters from its point of origin. It is responsible for the Tule fog of the Central Valley of California, which is a thick, persistent fog that occurs during the winter months. The Tule fog can be dangerous for drivers as it reduces visibility on the roads, leading to accidents.
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A wintertime form of precipitation that consists of small transparent or translucent ice particles is called ________.
Answers
Based on the atmospheric analysis, a wintertime form of precipitation that consists of small transparent or translucent ice particles is called "Sleet."
This is because sleet is a form of precipitation that consists of both rain and snow.
Sleet falls during winter, and it has smaller ice pellets compared to hail.
Sleet usually occurs at a time when temperature inversion makes the snow melt then refreeze.
Hence, in this case, it is concluded that the correct answer is "Sleet."
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Which statement describes the cyclic nature of seafloor spreading?
Answers
Answer:
Seafloor spreading is a geologic course in which tectonic plates divided apart from each other creating new seafloor. The Statements that describe the cyclic nature of seafloor spreading are as follows; New oceanic crust is formed.
3 countries that are in asia
Answers
Answer:
china,japan,south korea
Explanation:
What is the cool, rigid, outermost layer of the Earth? A. the asthenosphere B. the geosphere C. the lithosphere D. the mesosphere
Answers
Answer: C
Explanation: The lithosphere!
A HIGH ISO is ___ sensitive to light and will have____noise in the photograph
Answers
A HIGH ISO is very sensitive to light and will have high levels of noise in the photograph
What is a high ISO setting?A HIGH ISO setting on a camera increases its sensitivity to light, allowing it to capture brighter images in low-light conditions.
However, this increased sensitivity also leads to higher levels of digital noise in the resulting photograph. This noise appears as grainy or speckled patches throughout the image, particularly in areas of shadow or darker tones.
The level of noise will depend on the specific camera and ISO setting used, as well as factors such as shutter speed and aperture.
Balancing these factors is crucial to achieving a well-exposed, low-noise image in challenging lighting situations.
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34. Study the topographical maps below:
Which features are most likely shown in both topographical maps? (SC.6.E.6.2)
a. streams
b. islands
c. valleys
d. lakes
Answers
Answer:
a. streams
Explanation:
The "V" shape( the black lines) indicates that streams are on both topographical maps.
Why is mountain/ Himalayan ecosystem is taken as sensitive?
please help me to do this problem.Also give Long answer.
Answers
Answer:
The mountain ecosystems of Panchase region are also highly vulnerable to the impacts of a changing climate. Rising temperatures and increasingly unstable rainfall patterns are drying up water sources, changing vegetation characteristics, and making landslides more frequent and severe.
Explanation:
la bhayoo ...yei hoo....
What are Percent Properties?
Answers
Answer:
try looking it up, i cant remember
Explanation:
European colonization in Southeast Asia resulted in _____.
wealth for small farmers
ethnic conflict
success for local artisans
economic independence
Answers
Answer:Wealth for small Farmers
Explanation:
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional question Online Content: Site 1 Summarize the three winter holidays of Three Kings Day, Kwanzaa, and Hanukkah. Explain why these holidays are honored and how they are celebrated by individual cultural groups. (Site 1) body P BIUS X₂ X² I hp T Save and Exit
Answers
Holidays like The Three Kings Day, Kwanzaa, and Hanukkah are observed by many cultural groups for quite different motives.
The Christian feast known as Three Kings Day, often called Epiphany, is observed on January 6th, 12 days following Christmas.
Kwanzaa: This nonreligious cultural event honors African ancestry, neighborhood, and families.
Hanukkah: A menorah, a unique candleholder, is lit to commemorate this Jewish festival, which is observed for eight days in November or December.
As a result, the significance of the holidays are honored and how they are celebrated by individual cultural groups are the aforementioned.
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What is the
main difference between
well-sorted sediment and
poorly sorted sediment?
Answers
Answer: Sorting refers to the variety of grain sizes in a rock. A well-sorted sedimentary rock is one in which all the grains have the same size. A poorly-sorted sedimentary rock contains grains of many different sizes.
Explanation:
Suggest THREE strategies that can be implemented (used) to reduce flooding
Answers
Answer:
1.) Separating rainwater from the sewer system. ...
2.) Install water infiltration and attenuation systems. ...
3.) Keep the sewer system clean, so it can do its job.
Explanation:
-Separating rainwater from the sewer system. ...
-Install water infiltration and attenuation systems. ...
In order for prokaryotes to exist continuously on Earth, what geological changes or events had to have occurred first? Choose all that apply. a. Heavy Bombardment must end first b. Moon formation must have already occurred c. Continents must have finished all collisions d. Free Oxygen must have come together to form an Orone layer c. Earth must have cooled and solidified f. Eukarayotes must already be present as an elergy source
Answers
Prokaryotes are unicellular organisms that do not have a true nucleus. They are considered the simplest and oldest forms of life that have existed on Earth.
In order for prokaryotes to exist continuously on Earth, the following geological changes or events had to have occurred first: Heavy Bombardment must end first
Moon formation must have already occurred Free Oxygen must have come together to form an Orone layer Earth must have cooled and solidified. Let's take a look at each of these in more detail:
Heavy Bombardment must end first: Heavy Bombardment is the period in the early history of the Earth where it was constantly bombarded by meteorites and other debris from space. This period ended about 4 billion years ago. The bombardment would have made it difficult for life to exist, so it had to end before prokaryotes could evolve.
Moon formation must have already occurred: Moon formation is thought to have occurred about 4.5 billion years ago when a Mars-sized object collided with Earth. The collision would have caused significant changes to the Earth's surface, including the formation of the moon. The moon has played a role in stabilizing the Earth's rotation and providing a stable climate, which is important for the survival of prokaryotes.
Free Oxygen must have come together to form an Orone layer: Prokaryotes are thought to have evolved about 3.5 billion years ago. However, it wasn't until about 2.5 billion years ago that free oxygen began to accumulate in the atmosphere due to the evolution of photosynthesis in prokaryotes. The accumulation of oxygen eventually led to the formation of an ozone layer, which protects life on Earth from harmful UV radiation.
Earth must have cooled and solidified: Prokaryotes could not exist on a planet that is too hot or too cold. It is thought that the Earth's surface was too hot for life to exist during the first few hundred million years after it formed. However, as the Earth cooled and solidified, conditions became more favorable for life to evolve. This would have taken several hundred million years.
Eukaryotes must already be present as an energy source: Eukaryotes did not evolve until about 1.5 billion years ago. Prokaryotes were able to exist for billions of years without eukaryotes, so they are not necessary for their existence. However, eukaryotes have played an important role in the evolution of life on Earth as a source of energy through photosynthesis and as a food source for other organisms. Therefore, this statement is incorrect.
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in the northern hemisphere, as air moves towards the equator the coriolis effect causes wind to have an apparent deflection to the:
Answers
In the Northern Hemisphere, as the air moves towards the equator, the Coriolis effect causes wind to have an apparent deflection to the right.
As air flows towards the equator in the Northern Hemisphere, the Coriolis force causes wind to deflect to the right. Winds that would ordinarily proceed in a straight path towards the equator are instead deflected eastward.
The rotation of the Earth causes the Coriolis effect, which affects the direction of the moving things on the planet's surface, including air masses. The Coriolis effect causes wind to appear to deflect to the left in the Southern Hemisphere.
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which factor is important in accumulating and removing sands that result in shifting barrier islands?
Answers
Barrier islands are constantly shifting and evolving due to a variety of factors, including the accumulation and removal of sand. The most important factor in this process is the balance between sediment input and output.
If sediment input exceeds output, the island will grow and expand. Conversely, if sediment output exceeds input, the island will shrink and may even disappear entirely.
There are several factors that can influence the balance between sediment input and output. For example, wave action and ocean currents can transport sand onto or away from the island, while storms and hurricanes can erode and redistribute the sand. Human activities such as dredging, beach nourishment, and development can also have a significant impact on sediment input and output.
To successfully manage and preserve barrier islands, it is important to understand and monitor these factors and their effects on the island's size and shape. This can involve ongoing monitoring of sediment levels and movement, as well as careful planning and management of development and restoration projects. By balancing sediment input and output, we can help ensure the long-term health and stability of these important coastal habitats.
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tropical rain forest, savanna, desert, temperate grassland, temperate deciduous forest, temperate evergreen forest, taiga, and tundra are all major types of
Answers
The major types of biomes are tropical rainforest, savanna, desert, temperate grassland, temperate deciduous forest, temperate evergreen forest, taiga, and tundra.
Tropical rainforest, savanna, desert, temperate grassland, temperate deciduous forest, temperate evergreen forest, taiga, and tundra are all major types of biomes. The biomes are the world's main ecosystems. These biomes are distinguished by climate, vegetation, and fauna.
There are 8 major terrestrial biomes, each with its own unique climatic, environmental, and living conditions, including:
Tropical rainforest
Savanna
Desert
Temperate grassland
Temperate deciduous forest
Temperate evergreen forest
Taiga
Tundra
Biomes, in general, are categorized according to climate, vegetation, and fauna. Climate and plant life have a significant impact on animal life in biomes. The climate is determined by a variety of factors, including the average temperature, the amount of rainfall, and the duration of the dry season.
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What would you need to know about a planet's physical characteristics (e.g. solar system, atmosphere and surface) to estimate its potential suitability from afar? Are there some simple physical/mathematical relationships you could use to make some reasonable first guesses about the planet's climate?
Answers
To estimate the potential suitability of a planet from afar, important information about its physical characteristics includes its location within the solar system, composition and dynamics of its atmosphere, and the nature of its surface.
When assessing the potential suitability of a planet from a distance, knowledge about its location within the solar system is crucial. Factors such as the planet's distance from its star, its orbital period, and its position within the habitable zone can provide initial clues about its potential for maintaining liquid water, a key ingredient for life as we know it.
The planet's atmosphere plays a significant role in its climate. Information about the composition and dynamics of the atmosphere can help estimate the presence of greenhouse gases, which trap heat and influence the planet's temperature. The presence of certain gases, such as carbon dioxide and methane, can contribute to a stronger greenhouse effect and result in higher temperatures.
Additionally, understanding the planet's surface characteristics is important. Factors like the presence of oceans, ice caps, or landmasses can impact the distribution of heat and moisture, affecting the overall climate patterns. Surface properties, such as reflectivity (albedo), also play a role in determining how much solar radiation is absorbed or reflected, further influencing temperature.
While these factors provide a starting point, estimating a planet's climate and potential suitability from afar is a complex task. Detailed observations and models are necessary to account for the intricacies of atmospheric circulation, cloud formation, feedback mechanisms, and other factors that shape the climate system.
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Which of the following best explains how a tephra deposit forms?
A. Airborne ash and rocks from a volcanic eruption remain suspended in the air for a long time before eventually settling to the ground in a new location far from the volcano.
B. Highly fluid lava erupts from an active volcano and flows across great distances, slowly solidifying into a flat surface.
C. As magma is forced upward, it travels through vertical cracks in the crust, spreading outward and pushing up an overlying layer, creating a dome.
D. As magma is forced upward, it travels horizontally through cracks in the crust,
Answers
Correct option is (a) Airborne ash and rocks from a volcanic eruption remain suspended in the air for a long time before eventually settling to the ground in a new location far from the volcano.
What is a tephra deposit?Magma and rock are destroyed and broken apart by the sudden explosion of expanding gases. The degree of fragmentation increases as explosivity increases.
A general name for any airborne pyroclastic buildup is tephra (Greek for ash). Tephra has not yet solidified.Specific forms of tephra can be further classified by physical characteristics within this size range.
For instance, basaltic lava pieces the size of lapilli may fast cool while in flight, forming the glassy Pele's tears lapilli. These molten particles may be pulled out into tiny strands known as Pele's hair during high winds.
Nonexplosive Hawaiian-type eruptions frequently produce lapilli- to bomb-size fragments, known as spatter, that are still liquid when they hit the ground surface because they only spend a brief time in the air.
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Answer:
Correct option is (a) Airborne ash and rocks from a volcanic eruption remain suspended in the air for a long time before eventually settling to the ground in a new location far from the volcano.
Explanation:
the outer area of the earth that makes up the physical features
Answers
Answer:
The lithosphere
Explanation:
—-
Energy management systems control: *
a. turbidity.
b. HVAC systems.
c. water flow.
d. potability
Answers
Energy management systems control b) HVAC systems.
Energy management systems are computer-controlled software platforms designed to allow energy managers to monitor, control, and optimize their energy usage. These frameworks, which are installed in energy-intensive facilities such as factories, hospitals, and office buildings, help energy managers and facility managers better understand energy usage, allowing them to identify areas for improvement and make data-driven decisions.
They also help to ensure that equipment and systems are running at peak efficiency and performance so that the building occupants are comfortable and safe.
Therefore, the correct answer is b) HVAC systems.
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note the uncomfortable contact between the permian cutler formation and the precambrian gneisses and schists. what type of unconformity is represented by this contact
Answers
An unconformity is a place where two rock layers meet, but one layer is much older than the other. When new sedimentary layers are deposited on top of an existing surface of weathered rock or an older sedimentary layer, a boundary is formed.
This boundary is known as an unconformity. There are three types of unconformities: Angular unconformities, Disconformities, and Nonconformities. The Permian Cutler Formation and the Precambrian Gneisses and Schists are two types of rock formations. The contact between them is uncomfortable. The type of unconformity represented by this contact is the nonconformity. The term "nonconformity" refers to a place where sedimentary rock rests directly on igneous or metamorphic rock, rather than on other sedimentary rocks as in an angular unconformity. It is known as nonconformity because of the difference between the types of rocks in each of the different rock formations. What is the Cutler Formation? The Cutler Formation is a rock formation in the southwestern United States that dates back to the Permian period. The Cutler Formation is made up of sandstone, siltstone, and shale, and it contains a variety of fossils, including reptiles, amphibians, and fish. This formation is located in Colorado, New Mexico, and Utah.What are Gneisses and Schists?Gneisses are a kind of metamorphic rock that is typically found in mountainous areas. They are formed from the alteration of sedimentary or igneous rocks by intense heat and pressure. Schists are also a kind of metamorphic rock, but they have a distinct layered structure that is caused by the alignment of minerals during the metamorphic process. They are formed by the metamorphism of shale or other fine-grained sedimentary rocks.
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rocks can begin to melt if rocks can begin to melt if a decrease in pressure results in a sufficient decrease in the rock's melting point. the rock's water content increases thereby decreasing the rock's melting point. heated by rising magma from the earth's interior. all of the above. none of the above.
Answers
Rocks can begin to melt if rocks can begin to melt if a decrease in pressure results in a sufficient decrease in the rock's melting point, the rock's water content increases thereby decreasing the rock's melting point and heated by rising magma from the earth's interior. The correct option is All of the above.
Rocks can begin to melt under different conditions, and all of the options listed are valid factors that can contribute to rock melting. A decrease in pressure can lower the rock's melting point, allowing it to melt even at lower temperatures.
The water content of a rock can also affect its melting point, with increased water content leading to a decrease in the melting point. Additionally, the heat generated by rising magma from the Earth's interior can transfer energy to the surrounding rocks, raising their temperature and potentially causing them to melt.
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A geographer is interested in studying how and why the environments of the Amazon Rainforest and the Andes Mountains are different. Which essential element of geography would the geographer use to complete this research?
A.
human systems
B.
physical systems
C.
places and regions
D.
uses of geography
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
a or b not sure .......... hop this helps a little bit
Answer:
C. places and region
Explanation:
They want to study the Andes Mountains and the Amazon Rainforest, which are both regions and or places.
Can you help me?
Write a paragraph explaining the pros and cons of globes as a scientific model.
Answers
Answer:
A globe is a three dimensional representation of the Earth. It is a simpler model of the Earth.
Two advantages of a globe are:
It shows us the correct shapes and sizes of the land and water masses.
It gives us a good visual indication of the Earth’s surface.
Two limitations of using a globe are:
It is not easy to carry a globe from one place to the other due to its big size.
A globe does not show us various features like the vegetation and the climate of a place.
Explanation:
Advantages –
The ideas of parallels (latitudes) and meridians (longitudes) can be understood through globes
It helps us to understand how day and night occur and seasons are caused.
It gives the ideas of tilt of the Earth’s axis.
It is the smaller representation of our world.
The advantage of the globe is that it promotes visual accuracy. Students need to use a globe frequently if they are to form accurate mental maps.
The advantage of the world map is that you can see the entire world at one time.
It shows us the correct shapes and sizes of the land and water masses.
It gives us a good visual indication of the Earth’s surface.
Disadvantages –
Difficult to hold on hands or carry.
Does not help to study the specific part of the Earth.
It does not show towns, cities, district, roads, railways etc.
The disadvantage is that world maps distort shape, size, distance, and direction.
It is not easy to carry a globe from one place to the other due to its big size.
A globe does not show us various features like the vegetation and the climate of a place.
ASAP
Sara is recording water levels in the ocean near her home once an hour for one day. She observes the water level slowly rising and faling twice that day. What is Sara observing?
O Currents
O Gravity
Tides
Waves
Answers
Answer:
Sara is observing tides.
Explanation:
When Sara was recording water levels in the ocean once every hour for 24 hours, she will notice that the water levels are slowly rising twice a day, and they are dropping slowly twice a day. Sara is witnessing tides. The tides basically represent the rise and fall of the levels of the water because of the influence of the Moon's gravitational pull.
The Moon is the closest object to Earth, and with its gravitational pull, it manages to influence the water on Earth. The side of Earth that is facing the Moon and the opposite side, experience water rise because the Moon is pulling the water toward it. The sides of Earth that are not exposed to the gravitational pull of the Moon experience drop in the water levels because the water is pulled on the other two sides. When the water rises we have a high tide, and when the water drops we have a low tide.
what country is at 40 n, 30 e
Answers
Answer: Turkey
Explanation: The country at 40 N, 30 E is Turkey. It is on mainland Turkey and is near the center of Turkey.
Let me know if this helps!
Answer: It is Turkey
Explanation:
On the map, Turkey is at 40 N, 30 E.
y'all don't have to answer this I got it:)
