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Newton's laws of gravitation ?

Posted by Anjo Joseph 7 years, 3 months ago

2 answers

Suraj Maurya 7 years, 3 months ago

every object of universe attract to any other object with a force which is directly proportional to the product of their masses and invers3ly proportional to the suare distance between them

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Harshit Ahlawat 7 years, 3 months ago

1. A object will be in state of rest or in uniform motion untill and unless an external force is applied. 2. F =ma 3. Every action has a equal and oppsite reaction

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ANSWER

What you mean by pasticide

Posted by Aanchal Jaiswal 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Parampreet Kaur 7 years, 3 months ago

It is pesticide * These are the chemicals that are used to reduce pests from the crops (fields )

1Thank You

ANSWER

Has anyone goy Scholarship in this ???? Plz reply

Posted by Sakshi Pandey 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Sakshi Pandey 7 years, 3 months ago

1Thank You

Kanuganti Divija 7 years, 3 months ago

Noooooo

1Thank You

Princy Tyagi 7 years, 3 months ago

Noo

1Thank You

ANSWER

Why ships float on water??

Posted by Sajal Raj 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Jansi Sabharwal 7 years, 3 months ago

Because of density and their stream lined body

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Kanuganti Divija 7 years, 3 months ago

Less density

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ANSWER

What is the difference between chordata and protochordata

Posted by Yash Shinde 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Gaurav Seth 7 years, 3 months ago

In prochordates :

- Notochord persistency is throughout life.
- Atrium is present.
- Heart is chamber-less and no blood corpuscles.

In Chordates :
- Notochord is replaced by vertebral column.
- Atrium is absent.
- Chambered heart and RBCs present in the blood.

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ANSWER

Why Bryophyta is called amphibian of the plantae kingdom ?

Posted by Karan Singh 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Parampreet Kaur 7 years, 3 months ago

The correct answer is ....: because they have a life cycle that need water as well as land (half of there life cycle is in water and half on land )

1Thank You

Jewel Joji 7 years, 3 months ago

So they are called amphibians of plant kingdom

1Thank You

Jewel Joji 7 years, 3 months ago

Though these plants live in soil they need water for sexual reproduction

2Thank You

ANSWER

Which is the amphibian of plant kingdom

Posted by Afreen Dudekula 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Afeefa Ara 7 years, 3 months ago

Byophyta

3Thank You

ANSWER

SI unit of mass

Posted by Satyam Kumar Pandey 7 years, 3 months ago

CBSE > Class 09 > Science

6 answers

Arya Magade 7 years, 3 months ago

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Kanuganti Divija 7 years, 3 months ago

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Simran Kaur 7 years, 3 months ago

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Karan Singh 7 years, 3 months ago

Kilogram

1Thank You

Ayush Bansal 7 years, 3 months ago

Kilogram

1Thank You

Abhinav Soni 7 years, 3 months ago

Kg or kilograms

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Why "a" is added in the given below words: Invertebrate - Invertebrata Insects - Insecta Vertebrate - Vertebrata Annelid - Annelida Etc.

Posted by Raj Vatsa 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Abhinav Soni 7 years, 3 months ago

Bhai ye Sab scientific words hai

1Thank You

ANSWER

describe thomson's model of an atom.

Posted by Mohit Bisht 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Aaryan Kathuga 7 years, 3 months ago

In thomson model of atom protons are uniformly distributed and electrons are embeded into it. Like watermelon red part as proton and seed as elctron.

2Thank You

ANSWER

What is the father of zoology

Posted by Parveen Vashist 7 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Ayush Bansal 7 years, 3 months ago

Aristotle is answer

2Thank You

Mohit Rajoriya 7 years, 3 months ago

Aristotle

1Thank You

Anu Kumari 7 years, 3 months ago

Aristotle

0Thank You

Abhinav Soni 7 years, 3 months ago

Aristotle

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ANSWER

describe bohars model of atom.

Posted by Mohit Bisht 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

what are the drawback of ruther fords model of the atom.

Posted by Mohit Bisht 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

describe Ruther fords model of an atom.

Posted by Mohit Bisht 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Mohit Bisht 7 years, 3 months ago

tu na ya kyu lekha phir nahi ata to mat answer do

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Abhinav Soni 7 years, 3 months ago

Bhai Google kar Abhi mujhe yadd nahi aa rha hai

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ANSWER

What is the diff between personal and public hygiene

Posted by Mukund V 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Abhinav Soni 7 years, 3 months ago

Public hygeine refers to cleanliness based on our environment like clean roads,proper managed drainage systems and personal hygiene refers to individual hygiene like proper bathing,clean hands

1Thank You

ANSWER

What is the father of biology ?

Posted by Parveen Vashist 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Princy Tyagi 7 years, 3 months ago

Aristotle

1Thank You

Parveen Vashist 7 years, 3 months ago

Good

0Thank You

Abhinav Soni 7 years, 3 months ago

Aristotle

1Thank You

ANSWER

What are the gravity

Posted by Vinod Choudhary 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Suraj Maurya 7 years, 3 months ago

An object that at a height from the earth surface dropped towards the centre of the earth due to the force of earth is called gravity

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Karan Singh 7 years, 3 months ago

Gravity is a force due to which objects attract each other. Usually we know that the Earth has a force called the gravitational force due to which all the objects if thrown upwards fall back to the ground.

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Abhinav Soni 7 years, 3 months ago

the natural force that makes things fall to the ground when you drop them

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ANSWER

State the number of atoms present in each of the following chemical species a) CO

Posted by Sahil Bhagat 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Md Shahzad 7 years, 3 months ago

2 atoms

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Abhinav Soni 7 years, 3 months ago

carbon dioxide molecule is chemically known as CO2. That means one atom of carbon and 2 atoms of oxygen, totaling 3 atoms.

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ANSWER

Why are lysosome known as sucidal bag?

Posted by Abhinav Tiwari 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Karan Singh 7 years, 3 months ago

Therefore they are called suicidal bags of the cell

1Thank You

Karan Singh 7 years, 3 months ago

When the cell becomes dead or when it does not work properly then then the lysosomes brust out and the digestive enzymes inside the lysosomes surround the cell and digest it's own cell leaving space for another cell to develop.

1Thank You

Yogita Ingle 7 years, 3 months ago

Lysosomes are cellular organelles that contain digestive enzymes that break down waste materials, foreign material and cellular debris. Lysosomes are capable of digesting nucleic acid, polysaccharides, fats, and proteins. Along with them lysosomes also digest or damage its own cells by its own enzymes, which lead to cell death. This process is called as autolysis. Hence lysosomes are also called as suicide bags .

1Thank You

ANSWER

Why is it not possible to see atom with naked eyes

Posted by Abcd 1234 7 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Abcd 1234 7 years, 3 months ago

thank you

1Thank You

Mohit Bisht 7 years, 3 months ago

atoms are very small that's why it is not possible to see atom .

1Thank You

Parveen Vashist 7 years, 3 months ago

No, because atom is very small particle

3Thank You

Abhinav Soni 7 years, 3 months ago

Becoz atoms are very small particles that can only be seen by microscope only

6Thank You

ANSWER

Hey listen guys plzz jst tell me what is kinetic energy in simple words....??

Posted by Simran Kaur 7 years, 3 months ago

CBSE > Class 09 > Science

7 answers

Simran Kaur 7 years, 3 months ago

Kon umedicated haii...

0Thank You

Md Shahzad 7 years, 3 months ago

Uneducated ho

0Thank You

Simran Kaur 7 years, 3 months ago

By the way i m a girl not a boy....??

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Simran Kaur 7 years, 3 months ago

Q abhinav aap exm mai fail ho gaye haii kyaa nad thnkuu guys for answer...

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Vedant Pillai 7 years, 3 months ago

the energy possessed by the virtue of motion is called kinetic energy.

1Thank You

Abhinav Soni 7 years, 3 months ago

Bhai aata hota toh exam pass n kar deta !!!

0Thank You

Saroj Kumar 7 years, 3 months ago

The energy of the body due to its motion is called kinetic energy

2Thank You

ANSWER

Has lushkoff become a beggar by circumstance or by choice?

Posted by Sweety Sharma 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Harshit Ahlawat 7 years, 3 months ago

Beggar by circumstances

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What is the unit of energy

Posted by Pankaj Kumar 7 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Suraj Maurya 7 years, 3 months ago

joule

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Parveen Vashist 7 years, 3 months ago

Kilojoule

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Saroj Kumar 7 years, 3 months ago

Joule it is represented by J

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Princy Tyagi 7 years, 3 months ago

Joule

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ANSWER

Kon

Posted by Manishi Tandon 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Manishi Tandon 7 years, 3 months ago

Question likh diya tha

1Thank You

Manishi Tandon 7 years, 3 months ago

Sorry to all by mistake

1Thank You

ANSWER

Geneus of annelida

Posted by Sumbul Bano 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Iron Spyder,,???✍️✍️ J 7 years, 3 months ago

Phylum annelida where phylum is the genus

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ANSWER

A 0.24g sample of compound of oxygen and boron was found by analysis to contain 0.096g of boron and 0.144 g of oxygen . Calculate the percentage composition of the Compound by weight

Posted by Aman Kumar 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Harshit Ahlawat 7 years, 3 months ago

Oxygen = 0.144/0.240 ×100 =60% Boron = 0.096/0.240 ×100 = 40%

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ANSWER

Is pressure is scalar or tensor quantity and if it is then why ?

Posted by Kuldeep Mishra 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Parveen Vashist 7 years, 3 months ago

Pressure is scalar quantity because it has only magnitude but no direction

0Thank You

Yogita Ingle 7 years, 3 months ago

Pressure is a scalar quantity. Not a vector quantity.(Mind you vector and scalar are rank-1 and rank-0 tensor, so your question about being a tensor is a meaningless one, as tensor is both vector and scalar and what not, so yes it is a tensor.)And as to why it is a scalar: It`s because you always take the force in the direction perpendicular to area, what it basically say is that you take the component of the force in the direction of area (remember the direction of area is perpendicular to the surface!) and divide it by the area.

1Thank You

ANSWER

What are the advantages and limitations of J.J.Thomson's model of an atom ?

Posted by Nandini Sharma❤️ 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 7 years, 3 months ago

Advantages of J.J Thomson’s model
An atom consists of positively charged sphere and the electrons are embedded in it. So mass of the atom is assumed to be uniformly distributed. The negative and positive charges are equal in magnitude. Hence, this model was able to explain the overall neutrality of an atom.
The limitations of J.J Thomson’s model of an atom are following:
(a) It could not explain the result of the scattering experiment performed by Rutherford.
(b) It did not have any experimental evidence in its support.

2Thank You

Kuldeep Mishra 7 years, 3 months ago

Limitations of j.j Thomsons model of an atom: His model can't explain the Rutherford's alpha scattering particle experiment . Which led the discovery of nucleus .

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Mention any 3 symptons

Posted by Bhavya Sewata 7 years, 3 months ago

CBSE > Class 09 > Science