What is the free-fall acceleration at its surface, in terms of the free-fall acceleration g at the surface of the earth?.

Answers

Answer 1
What is the free-fall acceleration at its surface, in terms of the free-fall acceleration g at the surface of the earth? (2/9)g. Suppose one night the radius of the earth doubled but its mass stayed the same. What would be the value of acceleration due to gravity on its surfac

Related Questions

A car travels at a speed of 50m/s for 20s. Calculate the distance covered
(m)

Answers

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 × Time

Now,

D = 50m/s × 20s

D = 1000 m

Thus, The car travels 1000 m.

-TheUnknownScientist 72

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

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

What is the main difference between a gas and a
plasma?

Answers

The main difference is that in a gas, the atoms remain intact and generally linked into molecules, but in plasma, at least part of the electrons have completely separated from their atoms. In other words, plasma particles are charged, whereas gas particles are largely uncharged.

During which process do trees remove carbon dioxide from the air?

A)deforestation

B)respiration

C)photosynthesis

D)both a and b

Answers

C) photosynthesis

During the process of photosynthesis, trees absorb carbon dioxide from the air.

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?

Answers

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.

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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.

What are the units of electric potential difference?.

Answers

The volt…1 Volt is equivalent to one Joule per Coulomb.

Explain the difference between the point of origin and the point of convergence. Which is shown in the image below?

Answers

The point of origin is the three dimensional location while the point of convergence is the area containing intersections.

Blood pattern analysis

Blood 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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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.

Answers

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.

What is the frequency between two turning forks if one has a frequency of 520 Hz and 528 Hz?

Answers

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:

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?

Answers

Answer:

what is the meaning of non cooperation

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.

Answers

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:

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.

Answers

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.

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

Answers

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✨✨

pls help me to answer this​

Answers

Answer:

Here you go

Explanation:

1. Radio

2. Gamma

3. Ultraviolet

4. Infrared

5. Visible

6. X-rays

7. Microwave

A 60 kg ice-skater, travelling initially at 3.0 m / s, glides across a horizontal icy surface. The skater brakes and comes to rest after 5.0 m.

The work done against the braking force is the change in the kinetic energy of the skater

Answers

Answer:

54 N

Explanation:

a= v/t

3÷5/3= 1.8 m/s^2

f=ma

1.8 x 60 = 108/2 = 54 N

The work done against the braking force is the change in the kinetic energy of the skater is 54 N.

What is work done?

Work is said to be done whenever a force moves an object over a distance.

[tex]W = F = ma[/tex]

where

Acceleration is given by

[tex]a = v/t[/tex]

[tex]a = \frac{3}{5/3}[/tex]

[tex]a = 1.8 m/s^2[/tex]

Work is

[tex]W = ma[/tex]

[tex]W = 60*1.8 m/s^2[/tex]

[tex]W = 54 N[/tex]

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2. The frequency of a sound is 1621 Hz. If the temperature is 30.0 °C, what is the wavelength
of the sound wave?

Answers

Wavelength= velocity / frequency
So, 1621/30

If the application of 10 Newton force the displacement of a body is 50 meter then calculate work done​

Answers

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 meter

To 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 × Displacement

Therefore , 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]

A car weighing 10000 Newton on one foot of Area 200 meter^2 . How much Pressure is exerted on the Ground ?​

Answers

Question :-

A car weighing 10000 Newton on one foot of Area 200 meter² . How much Pressure is exerted on the Ground ?

Answer :-

Pressure exerted on the ground is 50 Pascals .

[tex] \rule {180pt} {2pt} [/tex]

Given :-

Force = 10000 NArea = 200 m²

To Find :-

Pressure = ?

Solution :-

As per the provided information in the given question, we have been given that Force is 10000 Newton , Area is given 200 meter² . And, we have been asked to calculate the Pressure exerted on the Ground .

For calculating the Pressure , we will use the Formula :-

Pressure = Force / Area

Therefore , by Substituting the given values in the above Formula :-

⇒ Pressure = Force / Area

⇒ Pressure = 10000 / 200

⇒ Pressure = 50

Hence :-

Pressure = 50 Pascals .

[tex] \underline {\rule {180pt} {4pt}} [/tex]

Answer:

50 Pa

Explanation:

Here,

→Force(F)=10000N

→Area(A)=200m²

As we have,

→Pressure=Force/Area

→Pressure=10000N/200m²

→Pressure=50 Pa

1

A large stone block is to be part of a harbour wall. The block is supported beneath the surface of

the sea by a cable from a crane. Fig. 2. 1 shows the block with its top face a distance h beneath the

surface of the sea

cable

peech

surface of sea

nt

block

ЭХ

18

ton

Fig. 2. 1

ng

The force acting downwards on the top face of the block, due to the atmosphere and the depth h

of water, is 3. 5 X 10^N.

es

(a) The top face of the block has an area of 0. 25 m2

er

(1) Calculate the pressure on the top face of the block,

Media

nature

<<

Orere

121

Answers

The pressure on the top face of the block is 14,000 N/m².

What is pressure?

The pressure experienced by an object is force per unit area of the surface. The pressure experienced  by the object increases with increase in the applied force and decrease in surface area.

The pressure on the top face of the block is calculated as follows;

P = F/A

where;

F is applied forceA is top face area

P = (3.5 x 10³)/(0.25)

P = 14,000 N/m²

Thus, the pressure on the top face of the block is 14,000 N/m².

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Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.

Answers

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 glaciers

Calculate the MOMENTUM of a football weighing 0.34kg being thrown at a speed of 64.6m/s.

Answers

Answer:

The value of the momentum is 5.8 kg meters per second.

Explanation:

Hope this helps :)

List forms of energy which you use from morning when you wake up till you reach the school?

Answers

Answer:

mechanical energy, chemical energy, electrical energy heat energy sound energy light energy

.......

describe how an earth wire acts as a safety feature​

Answers

Answer :

The earth wire is a safety device that is attached to the appliance's casing. If the live wire falls loose and hits the casing, the earth wire offers a conduit for the electrical current to pass. The high current flowing through the ground line melts the fuse, turning off the device. If there is no earth wire, we will be the least resistance path for the current to ground in the event of a fault (shock), as there is no other way for the fault current to dissipate. In the event that there is an earth wire. Because the earth line is the least resistance path to the ground, we will be unaffected.

Explanation :

Have a great day! <3

Please help with this!

Answers

Answer:

The balloons have the same charge,

If they had opposite charges they would cling to one another.

What happens when a light wave is refracted?
The waves spread out.
The wave changes direction.
The wave is scattered.
The wave changes frequency.

Answers

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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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.

Answers

Answer:

mixture of all colors of ligjt

Answer:

White light is a mixture of all the colors of light.

Explanation:

I took the test.

What does the letter I represent?

Answers

The letter i is used to signify that a number is an imaginary number. It stand for the square root of negative one.

good morning! someone please answer this, ill give you brainliest and your earning 50 points.

Answers

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

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

Answers

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 force

The 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 particles

According 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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HELP !Description for runners knee

Answers

Runner's knee is dull pain around the front of the knee. It may be caused by a structural defect, or a certain way of walking or running. Symptoms include pain, and rubbing, grinding, or clicking sound of the kneecap.

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.

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