An artificial sattelite is moving in a circular orbit of radius 42250km calculate its speed if it takes 24 hours to revolve around the earrth

Answers

Answer 1

Answer:

v = 11061.02 km/h

Explanation:

Given that,

The radius of the circular orbit, r = 42250 km

Time taken to revolve around the Earth, t = 24 hours

We need to find the speed of the satellite. We know that, speed of an object is equal to total distance traveled divided by the time taken. So,

[tex]v=\dfrac{2\pi r}{T}[/tex]

Put all the values,

[tex]v=\dfrac{2\pi \times 42250}{24}\\\\v=11061.02\ km/h[/tex]

So, the speed of the satellite is equal to 11061.02 km/h.


Related Questions

A spring is hung from the ceiling. A 0.442-kg block is then attached to the free end of the spring. When released from rest, the block drops 0.150 m before momentarily coming to rest, after which it moves back upward. (a) What is the spring constant of the spring

Answers

Answer:

[tex]K=58.8N/m[/tex]

Explanation:

From the question we are told that:

Mass [tex]M=0.442[/tex]

Drop distance [tex]d=0.150[/tex]

Generally the equation for Spring Constant is mathematically given by

 [tex]K=\frac{2mg}{x}[/tex]

 [tex]K=\frac{2*0.442*9.8}{1.150}[/tex]

 [tex]K=58.8N/m[/tex]

Motion is
displacement
a change of position in relation to another object
an object you look at to determine if something is moving
speed

Answers

Explanation:

When something is moving, we call it is in motion. It can be also defined as a change of position in relation to another object.

When an object is not moving at all, we call that it was at rest.

To be in motion, there must be a change in position.

Hence, the correct options are "a change of position in relation to another object" and "something is moving".

the volume and the mass of substance are 15cm3 and 27 gm respectively find its density​

Answers

Answer:

[tex]d=1.8\ g/cm^3[/tex]

Explanation:

Given that,

Mass, m = 27 grams

Volume of the substance, V = 15 cm³

We need to find the density of the substance. We know that, the density of an object is given by mass per unit volume. So,

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{27}{15}\\\\d=1.8\ g/cm^3[/tex]

So, the density of the substance is equal to [tex]1.8\ g/cm^3[/tex].

If a chemical spill reaches groundwater, the availability of which resource will be reduced for people in the area?
A. fish
B. drinking water
C. hydroelectric energy
D. geothermal energy

Answers

The answer is fish I’ve had this question before

Sound waves require a medium to travel. *
True
False

Answers

Answer:

false

Explanation:

Answer:

true

Explanation:

Space is not a medium. and we can not her anything in space. therefore you need a medium in order to hear sound waves.

Select the correct answer.
What does the number, or density, of field lines on a source charge indicate?
O A.
direction of charge on the source charge
OB.
amount of charge on the test charge
O c.
amount of charge on the source charge
OD.
direction of charge on the test charge
Reset
Next

Answers

Answer:

amount of charge on the source charge


WILL GIVE BRAINLIEST HELP FASTWhat is the mass of Planet X? Note: The constant of universal gravity (G) equals 6.674 X 10-11 N·m²/kg?.
What is the centripetal acceleration of moon II? Note: The constant of universal gravity (G) equals 6.674 X 10-11 N·m²/kg?
0.069 m/s2
m
0.024 m/s2
0.081 m/s2
0.040 m/s2
0 0.19 m/s2

Answers

Answer:

Explanation:

Centripetal acceleration's equation is:

[tex]a_c=\frac{v^2}{r}[/tex] where v is the velocity of the object (moon II) and r is the radius. We have the radius, but we don't have the velocity, and we can't solve for acceleration until we do have it. Assuming moon II is a circle, or close enough to be called a circle, it has a circumference.

C = 2πr. If we can find the circumference of the circle, we can plug in the orbital period for the time, the circumference for the distance, and solve for velocity in d = rt. So let's do that and see what happens.

C = 2(3.14)(9.0 × 10⁷) and

C = d = 5.7 × 10⁸. Plugging in and solving for v:

[tex]5.7*10^8=v(3.0*10^5)[/tex] and

v = 1.9 × 10³. That is the velocity we can use in the centripetal acceleration equation.

[tex]a_c=\frac{(1.9*10^3)^2}{9.0*10^7}[/tex] and

[tex]a_c=.040\frac{m}{s^2}[/tex]

These are fun!

A force of 20N displaces an object to 5m in 10s. Calculate the power.

Answers

Answer:

hope it helps you see the attachment for further information

The electric force between two charges increases when
A) both charges become negative
B) both charges become positive
C) the charges get closer together
D) the charges get further apart

Answers

Answer:

the charges get closer together

d!!!!!!!!!!.!!!!!!!........d

HELP ME ASAP I WILL MARK YOU THE BRAINLIEST NO LINKS

Answers

Answer:

rolling friction is the lady in the forest

static friction is the man pushing the fridge

sliding friction is the snow kid

and fluid fraction is the bird I'm pretty sure

1. Static Friction
2. Sliding Friction
3. Fluid Friction
4. Rolling Friction

I don’t know if im fully correct, correct me if im wrong. Thanks!:)

plss plss plss help ASAP. thank u ​

Answers

Answer:

13. (A) 20°

14. (D) 65°

15. (A) 0 m/s

on what factors, current sensitivity voltage sensitivity of
a galvanometer depend?

Answers

it depends on numbers of turns coils area restoring force per unit twist and magnetic fieldshope it helps

That depends upon several factors

Number of turns of coilCurrent flowing through the galvanometerTorsion constant of suspension fibreStrength of magnetic fieldRestoring force.

A student said,Today, giraffes have long necks that allow them to eat leaves high in trees. They got longer necks by stretching up for even higher leaves. After many generations, the giraffe’s neck was really long.Do you think the student’s explanation for how the giraffe’s neck became long is correct? Explain.

Answers

Answer:

yes because there is also a theory about this I studied in biology

theory name -Lamarck's theory

The amount of water in rivers and lakes is always changing due to inflows and outflows. Based on the information in this passage and the diagram, what are these inflows and outflows part of?

A: the evaporation process
B: the water cycle
C: the precipitation process
D: human-controlled systems

Answers

Answer:

B. Water Cycle

Explanation:

hiii can someone please help me with this thank u <//3​

Answers

Answer:

7: B:

8: A:

9: D:

Explanation:

HOPE IT HELPS YOU!!

Answer:

7. (C) 12 m/s

8. (D) 44.1 m

9. (C) 9.8 m/s^2

Explanation:

8. y = -(1/2)gt^2

= -(1/2)(9.8 m/s^2)(3 s)^2

= -44.1 m

This means the ball traveled 44.1 vertically downwards.


What are some core features of waves in physics?

Answers

Answer:

Waves are disorders that travel through a fluid medium. Several simple wave features include frequency, period, wavelength, and amplitude.

Explanation:

As thermal energy is added to a sample of water, the kinetic energy of its
molecules increases, but the particles remain close together. Which part of
the heating curve illustrates this process?


Answers

Answer:

B

Explanation:

Answer:

B. C

Explanation:

took the test :V

(answer it or get reported) Solve it w the steps ty​

Answers

Answer:

25

Explanation:

p= w/t

p= 500N/20s

p= 25

I really need help.

Answers

yeah i did, hope you understand

I have no idea so i'm screwed please help me
Beryllium-11 has a half-life of 13.81 s. What percent of the initial sample will remain aft er 30.0 s?

Answers

Answer:

Let N0 be the initial atoms of Be11

N0 / 2^1 = N0 / 2  Number of Be11 after 1 half-life

N0 / 2^2 = N0/ 4   Number of Be11 after 2 half-lives

30/13.81 = 2.17 half lives

N0 / 2^2.17 = N0 / 4.51 = .222 N0 or 22.2 % of atoms remain

The percentage of the initial sample that will remain after 30.0 s is 22.2 % of atoms remain.

What is half-life?

A half of existence is the duration required for something to reduce in size by half. The phrase is most frequently used in reference to radioactive decay, which takes place as unstable atomic particles weaken. There are 29 known factors that can operate in this way.

Every chemical has a unique half-life. Since carbon-10, for instance, has a half-life of only 19 seconds, it is impossible for this isotope to be found in nature.

Let No of the initial atoms of Beryllium-11

No / 2¹ = N0 / 2  Number of Be11 after 1 half-life

No / 2² = N0/ 4   Number of Be11 after 2 half-lives

30 / 13.81 = 2.17 half lives

No / 2²·¹⁷ = N0 / 4.51 = .222 N0 or 22.2 % of atoms remain

Therefore, the percentage of the initial sample will remain after 30.0 s is 22.2 %.

To learn more about half-life, refer to the link:

https://brainly.com/question/16387602

#SPJ2

What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object

decreasing the positive charge of the positively charged object and decreasing the negative charge of the
negatively charged object

increasing the distance between the positively charged object and the negatively charged object

maintaining the distance
tance between the positively charged object and the negatively charged object

Hurry I need answers quick I’m timed

Answers

Answer:

A). Increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object.

Explanation:

The two objects possessing opposite or unlike charges attract one another due to the electromagnetic force between the electrons, as well as, protons in order to develop ionic lattices.

As per the question, the objects having unlike charges would attract one another more when we 'escalate the positive charge of the object having a positive charge and enhance the negative charge of the object possessing negative charge.' This will lead the atoms that are losing electrons to be positively(+ve) charged and the atoms gaining electrons to be negatively

(-ve) charged. Thus, the electromagnetic force among them increases and a stronger ionic network develops leading them to attract each other more. Hence, option A is the correct answer.

Answer:

The person above me is wrong the answer is actually B

Explanation:

I put his/her answer and got it wrong and it showed me theat the answer is b not a

What happens when magma moves the tectonic plates and pressure builds up

Answers

Volcanic eruption I’m pretty sure

The force of ____________ exists between any two objects that have mass.
free fall
acceleration
weight
gravity

Answers

Answer:

gravity

Explanation:

a wire is carrying a 2.45 A current. at what distance from the wire is the magnetic field 1.00x10^-6t

Answers

Answer:

0.49m

Explanation:

So you need to change the original equation for finding fields to find distance, and then just plug in the numbers

Which equals 0.49meters

Also it was right on Acellus :)

Hope this helps

A physical science test book has a mass of 2.2 kg what is the weight on the earth

Answers

Answer:

21.582 Newtons

Explanation:

The weight of an object on Earth is equal to W=9.81M where M is the mass of the object and the acceleration due to gravity is 9.81 m/s^2. Therefore, the weight of the book on the earth is W=9.81(2.2)=21.582N, or 21.582 Newtons

How far will a brick starting from rest fall freely in 3 seconds

Answers

Answer:

When object falls freely we can say

its initial speed will be ZERO

and its acceleration due to gravity must be

a = g = 9.8 m/s^2a=g=9.8m/s2

Now we need to find the distance of free fall in 3 s of time

So here we will use kinematics

y = v* t + \frac{1}{2} at^2y=v∗t+21at2

now we will plug in all values in it

y = 0 + \frac{1}{2}* 9.8 * 3^2y=0+21∗9.8∗32

y = 44.1 my=44.1m

So it will fall by total distance of 44.1 m

I Need help please.

Answers

Answer:

5.83

Explanation:

Divide the distance by velocity

please help i would really appreciate it

Answers

Answer:

Did you try searching it up

Explanation:

television set changes electrical energy to sound and light energy. In this process, some energy is *

Answers

Answer :light

Explanation:  

A television set is another device that operates by the transformation of energy. An electrical beam from the back of the television tube strikes a thin layer of chemicals on the television screen, causing them to glow. In this case, electrical energy is converted into light.

what is the square root of 64​

Answers

Answer:

8

Explanation:

Square root means what two same numbers multiplied together equal the same number,

So:

8 × 8 = 64

----------------------------------------------------------------------------------------------------------------

Have a good day :)

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