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The mass of the earth is 6×10 race 2 24 kilogram and that of the moon is 7 - 4 * 10 ^ 22 kilogram if the distance between the moon 3. 84 into 10 raise to power 5 km calculate calculate the force exerted by the Earth on the moon ( G=6•67× 10 race 2 power minus 11 NM square upon kg square)

Posted by Shikha Chaudhary 1 year, 2 months ago

CBSE > Class 09 > Science

1 answers

Keshav Kumar 1 year, 2 months ago

search-icon-header Search for questions & chapters search-icon-image Class 11 >>Physics >>Gravitation >>Newton's Law of Gravitation >>The mass of the earth is 6 × 10^24 kg an Question Bookmark The mass of the earth is 6×10 24 kg and that of the moon is 7.4×10 22 kg. If the distance between the earth and the moon is 3.84×10 5 km, calculate the force exerted by the earth on the moon. G=6.7×10 −11 N m 2 kg −2 Medium Updated on : 2022-09-05 Solution verified Verified by Toppr Given that, Mass of the Earth m 1 =6×10 24 kg Mass of the Moon m 2 =7.4×10 22 kg Distance between the Earth and the Moon d=3.84×10 5 km=3.84×10 8 m Gravitational Constant G=6.7×10 −11 Nm 2 /kg 2 Now, by using Newton’s law of gravitation F= r 2 Gm 1 m 2 F= (3.84×10 8 ) 2 6.7×10 −11 ×6×10 24 ×7.4×10 22 F= 14.8225×10 16 297.48×10 35 F=20.069×10 19 F=20.1×10 19 N Hence, the gravitational force of attraction is 20.1×10 19 N

ANSWER

125a ^ 3 - 27b ^ 3 + 75a ^ 2 * b - 45a * b ^ 2

Posted by Harshit Kumar 1 year, 2 months ago

CBSE > Class 09 > Science

1 answers

Satyam Kumar 1 year, 2 months ago

125a^3-27b^3+75a^2b-45ab^2

ANSWER

A solution of alcohol has be prepared a mixing 150 ml with 600 ml of water caulate the volume of percentage of the solution

Posted by Arjun J Kori Ks 1 year, 2 months ago

CBSE > Class 09 > Science

2 answers

Sidra Aqsa 1 year, 2 months ago

volume of alchol (solute) 150ml volume of water (solvent) 600ml volume of solution 750ml volume percentage 150/750*100 1/5*100 20%

Aditya Kumar 1 year, 2 months ago

Bbn

ANSWER

The mass of the earth is 6 × 10 ²⁴ and that of the moon is 7.4 ×10²² . If the distance between the earth and the moon is 3.84 × 10 ⁵ kilometre. Calculate the force exerted by the earth on the moon. Take G = and

Posted by Shreya Agnihotri 1 year, 2 months ago

CBSE > Class 09 > Science

2 answers

Parneet Sekhon 1 year, 2 months ago

What is gravitation

Kavyanjali Amrit 1 year, 2 months ago

the mass ofhte earth , M = 6 × 10 24 kg the mass of the moon , m = 7.4 × 10 22 the distance between the earth and the moon, d = 3.84 × 10 5 k m = 3.84 × 10 5 × 1000 m = 3.84 × 10 8 m G = 6.7 × 10 − 11 N m 2 k g − 2 From Eq . (10.4) ,the force exerted by the earth on the moon is F = G M × m d 2 = 6.7 × 10 − 11 N m 2 k g − 2 × 6 × 10 24 k g × 7.4 × 10 22 k g ( 3.84 × 10 8 m ) 2 = 2.02 × 10 20 N. Thus the force exerted by the earth on the moon is 2.02 × 10 20 N.

ANSWER

Is air a mixture?

Posted by Radha . 1 year, 2 months ago

CBSE > Class 09 > Science

5 answers

Karthik Karthi 1 year, 2 months ago

Yes

Kavyanjali Amrit 1 year, 2 months ago

Air is a mixture and not a compound because of the following reasons: Air can be separated into its constituents such as oxygen, nitrogen etc. by fractional distillation of liquid air. Air shows the properties of all the gases present in it.

Kunal Sisodiya 1 year, 2 months ago

Yes

Nihal Kumar 1 year, 2 months ago

Yes air is mixture of many various gases like nitrogen,oxygen, co2,and other gases.

Palak Sharma 1 year, 2 months ago

Yes air is a mixture of gases like oxygen,carbon dioxide, nitrogen,and other gases

ANSWER

Distinguish between the term gravitation and gravity giving suitable example

Posted by Ansh Agnihotri 1 year, 2 months ago

CBSE > Class 09 > Science

1 answers

Kavyanjali Amrit 1 year, 2 months ago

Gravitation:- Gravitation is the attractive force existing between any two objects that have mass. The force of gravitation pulls objects together. Gravity:- Gravity is the gravitational force that occurs between the earth and other bodies. Gravity is the force acting to pull objects toward the earth.

ANSWER

Ch 8

Posted by Vijay Pal Saini 1 year, 2 months ago

CBSE > Class 09 > Science

1 answers

Garvit Varshney 1 year, 2 months ago

What Ch 8

ANSWER

How many types of elements together make up the xylem tissue? Name them

Posted by Archana Acchu 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Karthik Karthi 1 year, 2 months ago

1)Tracheids 2)Vessels 3)Xylem parenchyma 4) Xylem fibres

Aarushi Singh Janwaar 1 year, 3 months ago

4 elements together make up the xylem tissue .... 1) Tracheids 2) Vessels 3) Xylem parenchyma 4) Xylem fibres

ANSWER

What is meant by a sybtance

Posted by Afiyan Sheikh 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Pragya Sharma 1 year, 2 months ago

If you search this thing on Google, you will understand very well.

Jyoti Gupta 1 year, 3 months ago

Define food chain

ANSWER

How can we drive first law of motion from the second law of motion

Posted by Armaan Singh 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Addiya Jaiswal 1 year, 2 months ago

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ANSWER

How does the water kept in an earthen pot become cool during summer.

Posted by Sunita Bisht 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Yaduraj Singh 1 year, 2 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

ANSWER

describe all the three equation of motion using velocity time gtaph

Posted by Gaurav Tiwari 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Priyanshu Kushwaha 1 year, 3 months ago

G

ANSWER

What are the properties of matter

Posted by _Pritpal Gill_ 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Sunita Bisht 1 year, 3 months ago

* Matter is made up of tiny particles. *Particles of matter are very small. *Particles of matter are continuously moving. *Particles of matter attract each other.

ANSWER

What is newton's first law of motion?

Posted by Ram Chandra 1 year, 3 months ago

CBSE > Class 09 > Science

5 answers

Abhijit Kumar 1 year, 1 month ago

According to the first law of motion a body is always at rest and always move until any external force applied on it

Pragya Sharma 1 year, 2 months ago

If an object is at rest it does not mean that it moves from its rest position like if I give an example when we are in a bus then our body is at rest but as if it is Bus start hoti he to bus me ek movement hota he jo humari rest position ko move position me change kar sakta he but humari body bhi force lagati he taki vo rest position se na hate Newton ke first law ko इनेरतीa bhi kehte

Krishna Kumar 1 year, 2 months ago

First law of motion: An aap check continuous to be in a state of rest or of uniform motion along a straight line unless acted upon by an unbalanced force

Archana Acchu 1 year, 3 months ago

"If a body is at rest, it will remain rest and a body with uniform motion will remain in uniform motion until an external unbalanced force is applied"

T. Vishal 1 year, 3 months ago

I don't know

ANSWER

Why do we call epidermis as a protective tissue

Posted by Archana Acchu 1 year, 3 months ago

CBSE > Class 09 > Science

3 answers

Shreya Agnihotri 1 year, 2 months ago

It is semi permiable membrane also . So it doesn't allow the diseases to enter the plant body .

Shaina Malik 1 year, 3 months ago

This is a main answer your question

Shaina Malik 1 year, 3 months ago

If acts as the first line of defence against various types of diseases and infection

ANSWER

What is the equation on 1st law of motion

Posted by Raj Kumar 1 year, 3 months ago

CBSE > Class 09 > Science

3 answers

Ansh Yadav 1 year, 2 months ago

V =u+at

Monika Sharma Sharma 1 year, 3 months ago

V=u+at

Raj Kumar 1 year, 3 months ago

V=u+at

ANSWER

What is the role of the atmosphere in climate control

Posted by Prashant Sharma 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Devansh K.R Gautam 1 year, 3 months ago

The earth's atmosphere protects the inhabitants by absorbing harmful solar rays and maintaining a steady temperature . It wards off many dangers of space thereby making life possible on earth .

ANSWER

Revision of ch 1

Posted by Hridyanshi Rohilla 1 year, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Who observed a living cell?

Posted by Simranpreet Kaur 1 year, 3 months ago

CBSE > Class 09 > Science

5 answers

Palak Sharma 1 year, 2 months ago

Antoine von leeuwonhoek

Monika Sharma Sharma 1 year, 3 months ago

Robbert Hooke

Khushi Yadav 1 year, 3 months ago

Antonie Von Leeuwenhoek

Samar Yadav 1 year, 3 months ago

antonvonleuwenhock

Aafiya Usmani 1 year, 3 months ago

Robert Hooke

ANSWER

S=ut+½at² drive this equation of motion

Posted by Rishab Rajput 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Saktheswaran T.T 1 year, 3 months ago

We know that, V avg = u+v/2 and v=u+at Vavg = u+u+at/2 and v = s/t s/t = 2u + at /2 s = t(2u + at/2) s = 2ut/2 + at^2/2 s = ut + 1/2 at^2

ANSWER

What is tussue

Posted by Harshpreet Kaur 1 year, 3 months ago

CBSE > Class 09 > Science

5 answers

T. Vishal 1 year, 3 months ago

A group formation of cells is known as tissue

Prachi Yadav 1 year, 3 months ago

A group of cells which work together and which has the same structure and function

Prem Mukherjee 1 year, 3 months ago

Tissue not tussue

Rachita Purve 1 year, 3 months ago

A group of cell is known as tissue

Sarwin Ajantha 1 year, 3 months ago

Group of cells

ANSWER

How can you separate a mixture of salt and water? Describe the method

Posted by Harsh Gandhi 1 year, 3 months ago

CBSE > Class 09 > Science

4 answers

Shrishty Bisht 1 year, 2 months ago

Crystallisation

Prachi Yadav 1 year, 3 months ago

Evaporation

Rachita Purve 1 year, 3 months ago

The method of separating salt from water is Distillation .

Divyanshi Choudhary 1 year, 3 months ago

Maybe it's possible by boiling the salt water, after boiling the salt will be in the utensil and water will evaporate, but I am not sure about it!!...

ANSWER

90°

Posted by Maya Kumari 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Satish Kumar 1 year, 3 months ago

Hi

Shekhar Mishra Ias 1 year, 3 months ago

273+90 =363 k

ANSWER

Which organelles of the cell plays a crucial role in detoxifying many poisons and drugs?

Posted by Satyam Jha 1 year, 3 months ago

CBSE > Class 09 > Science

5 answers

Surat Sakhi Ghai. 1 year, 2 months ago

Ser

Prachi Yadav 1 year, 3 months ago

Smooth Endoplasmic Reticulum

Shekhar Mishra Ias 1 year, 3 months ago

Smooth endoplasmic reticulam

Anushree Chauhan 1 year, 3 months ago

Smooth Endoplasmic Reticulum

Anita Adhikari 1 year, 3 months ago

SER(Smooth Endoplasmic Reticulum)

ANSWER

In which types of epithelium cilia are present? What is their role in this epithelium

Posted by Payal Ray 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Anuj Mishra Anuj Mishra 1 year, 3 months ago

Atom me kitna molecules

Manish Goswami 1 year, 3 months ago

What is matter

ANSWER

An artifical statellite is moving in a cirular orbit of radius 42250km calculate its speed if it takes 24 hours to revolve around the earth

Posted by Naman Yadav 1 year, 3 months ago

CBSE > Class 09 > Science

1 answers

Kavyanjali Amrit 1 year, 2 months ago

It is given that The radius of circular orbit r = 42250 km The time period of satellite T = 24 hours Distance traveled by satellite to complete 1 revolution = Circumference of a circle S = 2πr Read Full Article Substituting the values S = 2 x 3.14 x 42250 = 265464.58 km When the distance D and time T are given, speed v can be calculated using v =D/T Substituting the values v = 265464.58/(24 × 60 × 60) v = 3.07km/s Therefore, the speed is 3.07km/s

ANSWER

Swaraj

Posted by Lakhwara Swaraj 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Pragya Sharma 1 year, 2 months ago

Matter there types ke hote he liquid, solid and gas

Anuj Mishra Anuj Mishra 1 year, 3 months ago

Matter 3types ke kon hot e hai unka naam likhiya

ANSWER

Difference between a nerve and a neuron

Posted by Siddhvin Saxena 1 year, 3 months ago

CBSE > Class 09 > Science

2 answers

Harshpreet Kaur 1 year, 2 months ago

- A "neuron" is like a tiny messenger cell in your body that sends and receives messages. - A "nerve" is like a big cable made up of lots of these messenger cells bundled together. It helps carry messages between different parts of your body and your brain. So, neurons are the little messengers, and nerves are the big pathways they use to communicate within your body.

Anuj Mishra Anuj Mishra 1 year, 3 months ago

Important questions 80 number

ANSWER

Why is the cell called the structural and functional units of life

Posted by Anurag Kumar 1 year, 3 months ago

CBSE > Class 09 > Science

3 answers

Prachi Yadav 1 year, 3 months ago

Because all the living organisms are made up of cells and cells give a particular and proper structure shape to the body and specific function to the body and to the cell

Satyam Jha 1 year, 3 months ago

Multicellular organisms have many cells to perform different functions thus cell is the structural unit of life The cell capable of carrying out all the life process such as nutrition ,excretion , respiration etc hence it is called as the funcational unit of life

Aastha Agrawal 1 year, 3 months ago

This is because without cell, no other organ will form and if no organ will form then no organism can form. All organism present in the earth are made up of cell. So, it is called as the basic structural and functional unit of life.

ANSWER

How many elements are man made and how many are naturally occured

Posted by Rishika Chopra 1 year, 3 months ago

CBSE > Class 09 > Science

3 answers

Aastha Agrawal 1 year, 3 months ago

About 118 elements are present today in nature and 92 of them are natural while others are man made.

Rishika Chopra 1 year, 3 months ago

The number of elements known at present are more than 100. Ninety-two elements are naturally occurring and 8 are man made

Chetanniya Azad 1 year, 3 months ago

92 are natural and 26 are man made

ANSWER

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