How do stars keep their spherical shape? The force of pressure pushing inward is balanced by the force of gravity pulling outward. Pressure from the rocky surface molds the gas into a spherical shape. The force of gravity pulling inward is balanced by the force of pressure pushing outward. The gravitational force of a star's core pulls its molecules into a ball.
Answer: C
Explanation:
The fusion pressure inside of the stars core creates an outward force acting on the star. This pressure is balanced by the inwards gravitational force that the core of the star is experiencing.
Please help with this!
Answer:
The balloons have the same charge,
If they had opposite charges they would cling to one another.
Intrusive igneous rocks:_____________
A. are fine-grained because they cooled slowly.
B. are never seen by humans, because they form deep in the Earth and are never exposed at the surface.
C. are rocks like basalt, andesite, and rhyolite.
D. cool slowly and are coarse-grained.
Answer:
D
Explanation:
Contrary to answers a, b, and c, volcanic rocks, like basalt, andesite, and rhyolite, are fine-grained which are extrusive igneous rocks.
Intrusive rocks, also called plutonic rock, are coarse-grained and cool slowly without ever reaching the surface. While intrusive igneous rocks do solidify in the earth they do eventually become exposed by erosion.
I hope this helps
Correct me if I'm wrong.
Which statement is true?
Which statement is true?
A. The combustion of biomass can replace fossil fuels in conventional power plants.
B. Hydroelectric energy uses the energy from the sun, which is a renewable resource.
C. Oil is a non-renewable resource that is hardly ever used, so there is not a concern of depleting the Earth's supply.
D. Solar energy is a non-renewable resource that is used by many countries all over the world.
1. Is it possible for a black hole to "eat" an entire galaxy?
2. Does anything that goes inside the black hole comes out?
Pls write your own answers
Answer:
A black hole cannot eat an entire galaxy.
Some scientists believe that stuff that goes into a black hole might go into another dimension but no one has been able to prove that theory, so most believe that any matter that enters a black hole is torn apart into the smallest components possible and eventually squeezed into a singularity
Explanation:
Hope this helps=) Keera DB. I
A small planet is discovered to have a layer of electrically charged dust floating at 1000m above the surface because of the balance between the gravitational forces and electrical forces exerted on the dust by the planet. If the dust layer is moved to 2000m above the surface, what will happen to the dust, and why
As the dust layer is moved to 2000m above the surface, the gravitational force of the particle will decrease due to increase in the distance of separation between the layer of dust particle and the planet.
Balanced force between gravitational force and electric forceThe balanced force between gravitational force of the planet and electric force of the dust particles creates equilibrium position for the dust particles.
Gravitational force of the particlesAccording Newton's law of universal gravitation, the force of attraction will decrease with increase in the distance of separation.
[tex]F = \frac{GMm}{R^2}[/tex]
Thus, as the dust layer is moved to 2000m above the surface, the gravitational force of the particle will decrease due to increase in the distance of separation between the layer of dust particle and the planet.
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During which process do trees remove carbon dioxide from the air?
A)deforestation
B)respiration
C)photosynthesis
D)both a and b
C) photosynthesis
During the process of photosynthesis, trees absorb carbon dioxide from the air.
What happens when a light wave is refracted?
The waves spread out.
The wave changes direction.
The wave is scattered.
The wave changes frequency.
Given what we know, we can confirm that when a light wave is refracted, it changes direction.
What is refraction?Refraction is a term used to explain and describe the change in direction of a light wave as it passes through a medium. This change in direction is caused by the change in speed of the light wave entering a new medium.
Therefore, we can confirm that when a light wave is refracted, it changes direction.
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What does the letter I represent?
What are the units of electric potential difference?.
pls help me to answer this
Answer:
Here you go
Explanation:
1. Radio
2. Gamma
3. Ultraviolet
4. Infrared
5. Visible
6. X-rays
7. Microwave
A car travels at a speed of 50m/s for 20s. Calculate the distance covered
(m)
Answer:
1000m
Explanation:
Distance = speed x time = 50x20 = 1000
Answer:
The answer is 1000m
Explanation:
Given;A car travels at a speed of 50m/sTime = 20sTo Find;Distance = ?Formula;Distance = Speed × TimeNow,
D = 50m/s × 20s
D = 1000 m
Thus, The car travels 1000 m.
-TheUnknownScientist 72
Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.
Temperature and energy ➡️ Surface temperature and ocean temperature
Atmospheric composition ➡️ Carbon-dioxide and other greenhouse gases
Ocean and water ➡️ Ocean acidification and sea level
Cryosphere ➡️ Sea ice and galciers
Here are the answers
Temperature and energy:-Ocean and surface temperatureAtmospheric composition:- Carbon dioxide and other greenhouse gasesOcean and water-Ocean acidification and sea level.Cryosphere :-Sea ice and glaciersCalculate the MOMENTUM of a football weighing 0.34kg being thrown at a speed of 64.6m/s.
Answer:
The value of the momentum is 5.8 kg meters per second.
Explanation:
Hope this helps :)
can someone please help
Answer:
could you probably expand on the question?
Explanation:
Which statement about white light is TRUE?
White light as no color.
White light is a mixture of all the colors of light.
The light that comes OUT of a prism is white.
White light is always reflected.
Answer:
mixture of all colors of ligjt
Answer:
White light is a mixture of all the colors of light.
Explanation:
I took the test.
Write an evaluation paragraph using the rubric.
Video link: https://contentstore.ple.platoweb.com/content/sharedmedia/Tracker/applications/car-round-trip/car-round-trip.html
I'll give an extra 100 point.
Answer:
There is an idea of a Patrick Bateman, some kind of abstraction, but there is no real me, only an entity, something illusory, and though I can hide my cold gaze and you can shake my hand and feel flesh gripping you and maybe you can even sense our lifestyles are probably comparable: I simply am not there.
Explanation:
2. The frequency of a sound is 1621 Hz. If the temperature is 30.0 °C, what is the wavelength
of the sound wave?
a boat has a speed of 2 m/s. it accelerates for half a minute to reach a speed of 8 m/s. work out the accelerattion of the boat
Answer:
0.13 m/s^2
Explanation:
acceleration is the change in velocity over time
So, 8-2=4
4/30=0.13
Brainliest pls
he right answer is "0.2 m/s²"
Answer explanation:
Acceleration = change in velocity / time
= (8 m/s – 2 m/s) / 30s
= 0.2 m/s2
Hope it helps
mark as brainliest please✨✨
What is the frequency between two turning forks if one has a frequency of 520 Hz and 528 Hz?
Answer:
Two tunnig fork of frequency 520 Hz and 524Hz are vibrated together. It means beats form due to it .
f₁ = 524 Hz
f₂ = 520 Hz
Beat period = 1/number of Bea are formed per unit time
= 1/(f₁ - f₂)
= 1/(524 - 520)
= 1/4 sec
Now, time inveral between successive maximum and minimum intensities = beat period= 1/4 sec
Explanation:
The data table shows the world population every five years between 2000 and 2015. Based on these data, what happened to the world population during this time frame?
The populaton of the world increase at a higher rate due to more children were born as compared to death ratio.
What happened to the world population during this time frame?The world population during this time frame, the world population increase at a higher rate because of unawareness and lack of education. People produce more children without knowing their impact on the environment and earth system.
So we can conclude that the populaton of the world increase at a higher rate due to more children were born as compared to death ratio.
Learn more about population here: https://brainly.com/question/25630111
Answer:
The population got a bit older
Explanation:
Assuming your question is the same as mine, that's the answer I got. This would've been way easier to answer if you at least included answer choices.
Explain the difference between the point of origin and the point of convergence. Which is shown in the image below?
The point of origin is the three dimensional location while the point of convergence is the area containing intersections.
Blood pattern analysisBlood pattern analysis is usually used by the forensic specialists to determine the facts surrounding an investigation using physical nature of blood stains.
There are different types of blood analysis but the one that was displayed in the picture is the impact spatter patterns which contains a point of origin and point of convergence.
The point of origin is the three-dimensional location from which blood spatter originated while the point of convergence is the area containing the intersections generated by lines drawn through the long axes of individual stains that indicates in two dimensions the location of the blood source.
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A block of wood of area 0.2 m^2 creates a pressure of 500 Pa. What is its weight?
Question :-
A block of wood of Area 0.2 m² creates a Pressure of 500 Pa . What is its Weight ?Answer :-
Weight of the block is 100 N .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Area = 0.2 m²Pressure = 500 PascalTo Find :-
Weight = ?Solution :-
As per the provided information in the given question, we have been given that the Area of the block is 0.2 m² . Its Pressure is given 500 Pascal . And, we have been asked to calculate the Weight of that block .
For calculating the Weight , we will use the Formula :-
Weight = Pressure × AreaTherefore , by Substituting the given values in the above Formula :-
⇒ Weight = Pressure × Area
⇒ Weight = 500 × 0.2
⇒ Weight = 100
Hence :-
Weight = 100 N .[tex] \underline {\rule {180pt} {4pt}} [/tex]
If the application of 10 Newton force the displacement of a body is 50 meter then calculate work done
Question :-
Calculate the Amount of Work done, when a Force of 10 N displaces a body through 50 meter, in its own direction .Answer :-
Work done is 500 Joule .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Force = 10 NewtonDisplacement = 50 meterTo Find :-
Work = ?Solution :-
As per the provided information in the given question, we have been given that Force is 10 Newton and Displacement is given 50 meter . And, we have been asked to calculate the Work done .
For calculating the Work , we will use the Formula :-
Work = Force × DisplacementTherefore , by Substituting the given values in the above Formula :-
⇒ Work = Force × Displacement
⇒ Work = 10 × 50
⇒ Work = 500
Hence :-
Work = 500 Joule .[tex] \underline {\rule {180pt} {4pt}} [/tex]
HELP !Description for runners knee
Answer:
Runner's knee is dull pain around the front of the knees.Runner's knee – also known as patellofemoral pain syndrome – is an overuse injury that affects as many as 30% of female runners and 25% of male runners.
Manuel and Daniel are playing catch with a football. They are standing 30 meters apart. Manuel
throws the ball to Daniel, and it takes 3 seconds for the ball to reach Daniel. How fast is the ball
going?
Answer:
what is the meaning of non cooperation
What were the two robots that landed on and explored mars in 2004 called?.
Answer:
Spirit and Opportunity were the names suggested by the winner of the contest -- a third-grader from Arizona. Spirit landed on Mars on January 3, 2004. Opportunity is scheduled to land on Mars on January 24, 2004. These robotic explorers are able to move much better than the 1997 Mars Pathfinder rover.
good morning! someone please answer this, ill give you brainliest and your earning 50 points.
One step of copper mining requires blasting ore to be able to blasted and extracted from mine.
This process causes harm to the Geosphere (Lithosphere)In this step, they blast the mines inside the earth. Which causes destruction and harm to the geosphere. We know that, land comes under Geosphere also known as Lithosphere.Mercury is used to recover minute pieces of gold that is mixed in soil and sediment. Sometimes Mercury can be lost in this process resulting in widespread contamination of local rivers and lakes.
This causes harm to the Hydrosphere.The portion of earth covered with water is known as hydrosphere.Since, The Mercury is getting mixed with the water. It is polluting the water that is the hydrosphere.Hundreds of tons of rock are unearthed, moved and crushed in mining operation significantly increasing the amount of dust and particulates in the air.
This causes harm to the Atmosphere.The particles of dust get increased in air and eventually gets mixed and spread everywhere.The air is getting polluted which means the atmosphere is getting harmed.Strip mining (also known as mountaintop removal) involves scraping away earth and rocks to get to coal buried near the surface. This often results in the destruction of ecosystems.
This causes harm to the Biosphere.The biosphere consists of plants and animals. And these plants and animals collectively form a habitat called ecosystem.When a ecosystem is destroyed, the biosphere is harmed.one step of copper mining requires blasting ore to be able to blasted and extracted from the mine
Geosphere ( Lithosphere)⇢During this process,the destruction caused will affect the soil and the ground ( Lithosphere)
Mercury is used to recover minute pieces of gold that is mixed in soil and sediment. Sometimes mercury can be lost in this process resulting in widespread contamination of local river and lakes
Hydrosphere⇢ The widespread contamination of local river and lakes will pollute the water bodies ( hydrosphere)
Hundreds of tons of rock are unearthed, moved, and crushed in mining operations significantly increasing the amount of dust and particulates in the air.
Atmosphere⇢The particles which will get mixed in the air,will make it poisonous to breath, resulting in a polluted atmosphere
Strip mining (also known as mountaintop removal) involves scraping away earth and rocks to get to coal buried near the surface. This often results in the destruction of ecosystems
Biosphere⇢This process has potential to destroy the ecosystem which comes under the biosphere
List forms of energy which you use from morning when you wake up till you reach the school?
Answer:
mechanical energy, chemical energy, electrical energy heat energy sound energy light energy
.......
What is the main difference between a gas and a
plasma?