In a recent hockey game, one player (m=100kg) was moving at a velocity of 8 m/s when he ran into another player (m=300kg) who was at rest (v=0m/s). After the collision, the two players were stuck together (moving with the same velocity). What was their velocity after the collision?
Their velocity after the collision was 2 m/s.
What is principle of conservation of momentum?
According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.
Given parameters:
one player (m=100kg) was moving at a velocity of 8 m/s initially.
Another player (m=300kg) who was at rest (v=0m/s) initially.
After collision they stuck together and let the velocity of them is v.
According to principle of conservation of momentum, total momentum remains conserved.
total initial momentum = total final momentum
100×8 + 300×0 = (100 + 300)v
400v = 800
v = 2.
Hence, their velocity after the collision was 2 m/s.
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A negative charge of -4.0 x 10 -6 C and a positive charge of 7.0 x 10 -5 C are separated by 30 cm. What is the force between the two charges?
Answer:
4.38 × 10^13
Explanation:
plz mark as brainist
Which sentences in the passage are true?
Georgia is a flood-prone area. Storm cellars and tornado-resistant structures would help mitigate the flooding. Desalinizing water would also be ideal in this situation. Georgia could use more satellites and radars to help with detection. Building dams and levees would help control the floodwaters.
Answer:
True: Georgia is a flood-prone area. Building dams and levees would help control the floodwaters.
False : Storm cellars and tornado-resistant structures would help mitigate the flooding. Desalinizing water would also be ideal in this situation. Georgia could use more satellites and radars to help with detection.
Explanation:
pls mark me brainliest
The following sentences in the passage are true: Georgia is a flood-prone area. Georgia could use more satellites and radars to help with detection. Building dams and levees would help control the floodwaters.
Why does Georgia face floods more often?Georgia is located in a region that is prone to severe weather events, including heavy rainfall and flash flooding. The state is also home to many rivers and streams, which can overflow their banks during periods of heavy rain, causing widespread flooding.
Additionally, Georgia has experienced significant population growth and development in recent decades, which has led to increased urbanization and construction in areas that were previously undeveloped or used for agriculture. This urbanization can lead to increased runoff during heavy rain events, which can exacerbate flooding.
Climate change may also be contributing to more frequent flooding in Georgia and other regions. As global temperatures rise, the atmosphere can hold more moisture, leading to more intense rainfall events and an increased risk of flooding.
Overall, floods are a natural and common occurrence in many parts of the world, including Georgia. By taking appropriate measures to prepare for floods, such as implementing effective flood management plans, improving infrastructure, and educating residents on flood risks and safety measures, communities can reduce the impact of flooding on people and property.
Here in the question.
The following sentences in the passage are true:
A. Georgia is a flood-prone area.
D. Georgia could use more satellites and radars to help with detection.
E. Building dams and levees would help control the floodwaters.
Note: Storm cellars and tornado-resistant structures would not help mitigate flooding, as they are designed to protect against tornadoes and severe windstorms, not floods. Desalinizing water is not directly related to flood mitigation, as it is a process of removing salt and other minerals from seawater to make it drinkable, which is more relevant to areas that lack access to fresh water.
Therefore, Georgia is a flood-prone area, and Georgia could use more satellites and radars to help with detection.and Building dams and levees would help control the floodwaters are true.
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who ever gets this will get a brainlest, science
Answer:
The answer is 'magma rises into the spaces where tectonic plates pull away from each other.'
Answer:I think it is the first answer
Explanation:
1.What do you think Sherman is right about?
2.What do you think Sherman is wrong about?
Answer:
Sherman is right about the green used to camoflauge the dragonflies.
He is wrong about them being the **same** dragonflies.
Sherman is correct that the dragonflies were camouflaged using green.
He is mistaken in thinking these are the same dragonfly.
Who was William Sherman?Sherman, who was raised in Ohio in a family with political clout, earned his West Point diploma from the US Military Academy in 1840. In order to pursue private commercial endeavors, he took a break from his military career in 1853.
He took up the role of superintendent of the Louisiana State Seminary of Learning & Military School in 1859; he left it when Louisiana withdrew from the Union. The institution is now known as Louisiana State University. Before to moving to the Western Theater in 1861, Sherman led a brigade of volunteers at the First Battle of Bull Run.
He was stationed in Kentucky where, as a result of his pessimism on the war's prospects, he experienced a breakdown that necessitated a brief period of leave.
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Which of the following objects exerts a gravitational force?
-the Moon
-an apple
-a basketball
-the Earth
-the Sun
the earth exerts a gravitational force
What is El Niño? What weather effects can El Niño cause?
What is La Niña? What weather effects can La Niña cause?
HELP RIGHT NOW!
Hello I need help its due today!
"Describe and explain how Mercury might be different if it had the same mass as Earth. *Consider the planet's composition"
Answer:This also means that Mercury's surface gravity is 3.7 m/s2, which is the equivalent of 38% of Earth's gravity (0.38 g). This means that if you weighed 100 kg (220 lbs) on Earth, you would weigh 38 kg (84 lbs) on Mercury.
Explanation:
Give me 2 animals to combine their inherited traits
Answer:
dogs and cats
Explanation:
hope this helps
How does the digestive system interact with the following organ systems (circulatory, muscular and nervous system) to maintain homeostasis?
Answer:
The circulatory system breaks down food and gets / absorbs nutrients. The muscular system works to get nutrients to the rest of the body. The nervous system basically controls the digestive system and sends information to the brain.
I'm pretty sure I'm right, but please correct me if I'm wrong! :)
PLEASE HELP! I think it's F but I'm not sure... Am I right???
The structural layers of the sun are shown in the cross-sectional diagram.
Which layer represents the chromosphere?
Select one:
a. C
b. D
c. E
d. F
c.E ps... that's the answerrr
Explanation:
that's the answer E
Chimneys don't get smoke in the house because of...?
Choices:
-----------------------------------------
A. Archimedes's Principle
B. Bernoulli's Principle
C. Pascal's Principle
D. hydraulics
Answer:
B :D
Explanation:
ANSWER FOR BRAINLIEST PLS AND FAST
Globally, the winter of 2014–15 was the warmest winter on record at that time, but it sure didn’t seem that way for most of the eastern United States. This region experienced record-low temperatures and extreme snowfall, especially in the northern and coastal areas. During this period of extreme cold and snow, it was not uncommon to see comments on social media disputing climate change. For example, some commenters took pictures of huge piles of snow and added comments such as, "This doesn’t look like global warming."
Do these commenters have a point? Should extreme snowfall over the course of a season cast doubt on the theory of global climate change? Make a scientific argument explaining why you agree or disagree with these commenters.
Answer:
I think the commenters do not have a point. one winter of extreme snowfall or cold temperatures do not effect the realism of climate change and its physical effects to the world such as (global temperature rise, warming oceans, shrinking ice sheets, glacial retreat, decreased snow cover, sea level rise, declining artic sea ice, extreme events, and ocean acidification). Just because we have one cooler summer or one colder winter does not change the facts of the situation.
Explanation:
Don't know if you still need this but this is what I wrote for my PLATO answer.
Hope this helps
These commentators don't make a valid point, though. If this was the warmest winter on record, it would be inaccurate to assert that global warming is not the cause.
What is global climate change?Long-term changes in temperature and weather patterns are referred to as climate change.
Although these changes may be natural, human actions have been the primary cause of climate change since the 1800s.
However, these commentators don't present a convincing argument. It would be incorrect to claim that global warming is not to blame if this winter turned out to be the warmest on record.
Despite snow where they were, there is global warming overall. Just because one location had snow does not mean that all locations will also have it.
It almost seems like they just performed one experiment on one group to get their results.
Which, as we all know, is completely incorrect because it takes at least three groups to provide a measurement that is even remotely accurate.
Thus, this can be concluded regarding the given situation.
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1. Most of the stars on the HR Diagram are classified as which type of star?
2. What is the color of the stars with the lowest surface temperature?
3. What is the color of the stars with the highest surface temperature?
4. Is the surface temperature of white dwarf stars higher or lower than red super giants?
5. What type of star has a low temperature but a high luminosity?
Answer:
1. Main Sequence - middle life 17
2. red
3. blue
4. White dwarf stars are much hotter than Red Supergiants 15. List the color of the stars from hottest to coldest: Blue, White, Yellow, Orange, Red 16.
5. red giants
Explanation:
Main sequence stars have a Morgan-Keenan luminosity class labeled V. red giant and supergiant stars (luminosity classes I through III) occupy the region above the main sequence. They have low surface temperatures and high luminosities which, according to the Stefan-Boltzmann law, means they also have large radii. White dwarf stars are much hotter than Red Supergiants 15. List the color of the stars from hottest to coldest: Blue, White, Yellow, Orange, Red 16. The hottest stars are the blue stars. A star appears blue once its surface temperature gets above 10,000 Kelvin, or so, a star will appear blue to our eyes. The lowest temperature stars are red while the hottest stars are blue. Astronomers are able to measure the temperatures of the surfaces of stars by comparing their spectra to the spectrum of a black body. Most stars, including the sun, are "main sequence stars," fueled by nuclear fusion converting hydrogen into helium. ...
As stars begin to die, they become giants and supergiants (above the main sequence).
Tsunamis and regular oceanic waves vary in many ways; explain at least two (2) differences between tsunami waves and regular oceanic waves.
Part 1
Show and Explain Sportsmanship during physical activity from a teammate. Think back to a time when a teammate displayed good and bad sportsmanship. Use the Sportsmanship Organizer an the rubric to guide you.
It’s time to share some experiences!
Think of at least two times you have seen a teammate be a bad sport.
Think of at least two times you have seen a teammate be a good sport.
Create pictures and detailed descriptions of all four examples, including:
the sport that was being played
your age when it happened
who said what
the final outcome of the situation
your thoughts on why things happened the way they did
You can submit the Sportsmanship Organizer or another creative format.
Answer:
.
Explanation:
DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!
What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?
By definition of kinetic energy,
the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.
Kinetic energy is represented by the following expression:
Ec = ½ mv²
Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m/s).
In this case, you know:
m= 4000 kgv1= 2 m/sv2= 4 m/sThen:
Ec1 = ½ mv1²
Ec1= ½ 4000 kg× (2 m/s)²
Ec1= 8000 J
and
Ec2 = ½ mv2²
Ec2= ½ 4000 kg× (4 m/s)²
Ec2= 32000 J
You can see that the kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.
In summary:
the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.Learn more about kinetic energy and mechanical energy:
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Robert uses a force of 22 newtons to move a 100 lb box a distance of 4 meters. How much work has he done?
50 newton-meters
88 newton-meters
400 newton-meters
2,200 newton-meters
Answer:
The answer is 88 newton-meters
Explanation:
science-who ever gets this will get a brainlest, Options
earthquakes
volcanoes
hurricanes
The answer is Earthquakes.
Hope that this helped!
how do you throw a pair of clipers
Answer:
YOU YEET IT!!!!
Explanation:
YEET
The colors of light that televisions primarily use to make a picture are ______________.
Red, Black, and Green
Red, Yellow, Blue
Red, Green, and Blue
Green, Blue, Purple
Answer:
Red, Green, and Blue
Explanation:
Each of the pixels on a computer monitor or TV screen is composed of phosphors surrounded by a black mask. The different colors we see are results from different combinations and intensities of these three primary colors (Red, Green, and Blue).
What do the best conductors have in common?
Answer:
A super conductor is a perfect conductor that has zero resistance. It doesn't just have very low resistance and conducts electricity well, it has ZERO resistance and conducts electricity perfectly with no losses at all
Which one is Transverse Wave?
(A). Particles move in the perpendicular direction that the wave travels
(B). Particles move in the same direction as the wave travels
help due tonight- n no mfkn links plsssss
Answer:a
Explanation:
Answer:
Your answer for this question is A) Particles move in the perpendicular direction that the wave travels
Does frequency of a music player changes the direction of the electrical current in the system ?
Answer:
No
Explanation:
Sound doesn't has any relation with electric current sound is the movement of particles basically from one place to another and current is the movement of electrons, doesn't matter what the frequency of sound is current will always been flowing from positive terminal to the negative
What is the cause of most waves and how can this change waves' characteristics?
There are three main factors that affect wave formation: wind velocity, fetch, and duration.
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.
Number the steps from when a stimulus is received to when the body reacts.
The stimulus is received by sensory receptors.
Motor neurons cause muscles to contract so the body can react to the stimulus.
The brain processes the information through interneurons.
Interneurons transfer response information to motor neurons.
Sensory neurons carry stimulus information to the brain or spinal cord
Answer:
answer
1,5,3,4,2
Number the steps from when a stimulus is received to when the body reacts.
1---The stimulus is received by sensory receptors.
5--- Motor neurons cause muscles to contract so the body can react to the stimulus.
3----The brain processes the information through interneurons.
4--- Interneurons transfer response information to motor neurons.
2---Sensory neurons carry stimulus information to the brain or spinal cord.
Explanation:
hope this helps!
to prove
please answer if you know
otherwise don't give
Answer:
this is your answer look it once
Earth's subsystems are the geosphere, atmosphere, hydrosphere, and biosphere. Energy and matter are transferred when Earth's subsystems interact.
Describe which of Earth's subsystems are involved when a hurricane passes through an area. Explain how these different subsystems affect one another.
Answer:
ok
Explanation:
The Earth is made of several subsystems or "spheres" that interact to form a complex and continuously changing whole called the Earth system. Scale
Processes operating in the Earth system take place on spatial scales varying from fractions of millimeters to thousands of kilometers, and on time scales that range from milliseconds to billions of years.
Examples of instantaneous - breathing; rotation of the Earth; earthquake
Examples of long term - making coal; plate tectonics
Cycles
The Earth system is characterized by numerous overlapping cycles in which matter is recycled over and over again. Cycles involve multiple spheres and systems interactions.
Examples of cycles: day and night; rock cycle; seasons
Energy
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
Humans and the Earth System
People are part of the Earth system and they impact and are impacted by its materials and processes.
AYOO Hey plzzzzzzzzzzzzzzzzzzzzzzz
Answer:
Hold on Ill answer it..When do u need it by
Explanation:
Answer:
the answer is A
Explanation:
the industrial society and its revolution
Show and Explain Sportsmanship during physical activity from a teammate. Think back to a time when a teammate displayed good and bad sportsmanship. Use the Sportsmanship Organizer an the rubric to guide you.
It’s time to share some experiences!
Think of at least two times you have seen a teammate be a bad sport.
Think of at least two times you have seen a teammate be a good sport.
Create pictures and detailed descriptions of all four examples, including:
the sport that was being played
your age when it happened
who said what
the final outcome of the situation
your thoughts on why things happened the way they did
Answer:
When I used too cheer some of my teammates would talk bad too the other teams or they would also make bad gestures at them.
My teammates have also helped out if someone got hurt, and they have helped out other members of the squad get better
Explanation:
I don't know names or how old you were so just add those in and you should get a pretty good grade