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Write any three diff b/w Mars and interia.

Posted by Satpal Kumar 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Harpreet Singh 4 years, 6 months ago

Mass 1. Mass is the quantity of matter in a body regardless of its volume or of any forces acting on it. 2. Mass is an absolute quantity and is a measure of inertia. Inertia 1. Inertia is a tendency of an object to continueits state of rest or motion. 2. It is the resistance of an object to change its state of motion. 3. Inertia depends on mass. Larger the mass, larger the inertia

ANSWER

Calculate the mass of 10 moles of oxygen

Posted by Satpal Kumar 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Tanisha Gupta 4 years, 6 months ago

No. of moles=10,atomic mass of oxygen=16 find mass Formula:No. of moles=given mass/molar mass 10=mass/16 10×16=mass Mass=160 g Hope it helped you?

Pinak Panigrahi 4 years, 6 months ago

Let mass be x Atomic mass of oxygen = 16g Given moles = 10 So, No of moles = given mass/ molar mass 10= x/16 Through cross multiplication X= 16×10= 160 g Hope it helps you

ANSWER

a ball dropped from a height H. when it reached the ground, its velocity is 50m/s. what is its height

Posted by Akash As 4 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Pata Monalisha 4 years, 6 months ago

Final velocity (V)=50m/s Acceleration = 10 Initial velocity =0 V^2-U^2=2as 50^2-0^2=2×10×s 2500=20s s=2500/20 s=125

Pata Monalisha 4 years, 6 months ago

Final velocity (V)=50m/s Acceleration = 10 Initial velocity =0 V^2-U^2=2as 50^2-0^2=2×10×s 2500=20s s=2500/20 s=125m

Pata Monalisha 4 years, 6 months ago

Final velocity (V)=50m/s Acceleration = 10 Initial velocity =0 V^2-U^2=2as 50^2-0^2=2×10×s 2500=20s s=2500/20 s=125m

ANSWER

1 Write two cause of water pollution? 2 Write two cause of soil pollution? 3 Write two cause of air pollution?

Posted by Moksha Sahu 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Bijayshree Laxmi Das 4 years, 6 months ago

2 causes of water pollution Industrial Waste. Sewage and Wastewater 2 causes of soil pollution Deforestation. Excessive use of fertilisers and pesticides. 2 causes of air pollution Burning of Fossil Fuels. Transportation

ANSWER

assertion: the acceleration faced by an object is dependent on their mass

Posted by Krish . 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Tanmay Srivastava 4 years, 6 months ago

Yes if the mass be 50 and the force applied is equally proportional to a body of mass 20 the acceleration will differ

Asmith Prabhav 4 years, 6 months ago

This is true as F=m×a or we can say that F/a=m where acceleration is inversly proportional to mass hence more is the mass less is thr acceleration....

ANSWER

What do you mean by histology

Posted by Saurav Shukla 4 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Ishika Sharma 4 years, 6 months ago

Study of tissue

Himanshi Chauhan 4 years, 6 months ago

The study of tissue is called histology

Saurav Shukla 4 years, 6 months ago

You all are wrong

Rishi Raj 4 years, 6 months ago

The microscopic study of the is called histology

Bijayshree Laxmi Das 4 years, 6 months ago

Histology is the branch of biology which studies the microscopic anatomy of biological tissues.

ANSWER

What are the difference between the mass of an object and it's weight

Posted by Ankit Singh 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Asmith Prabhav 4 years, 6 months ago

Mass:- it is a scaler quantity. It is constant at all places. Its si unit is kg .. Weight:- it is a vector quantity. It varies ... Its si unit is N....

Saurav Shukla 4 years, 6 months ago

Mass will be constant at all places in the universe but weight will differ from planet to planet

ANSWER

What do you accleration due to gravity

Posted by Ankit Singh 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Saurav Shukla 4 years, 6 months ago

It means about the acceleration by which the earth/planet attracts any object

ANSWER

Plz explain isobars and isotopes

Posted by Saurav Shukla 4 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Atul Kumar 4 years, 6 months ago

Yes bro u r absolutely right ❤️

Palaksh Gupta 4 years, 6 months ago

If tou will like I will give 100 with per like A N D T H I S I S A P R A N K ? ? ? ?

Aditi Kumari 4 years, 6 months ago

Isotopes are the atoms of the same element having the same atomic number but different mass numbers.isotopes of an element differ in the number of neutron in their nuclei. Isobars are the atoms of different element having different atomic number but the same mass number ( or same atomic mass ).

Rishi Raj 4 years, 6 months ago

Isobar. Isotopes are atomic structures of same elements having a different mass number/atomic mass. Isobars are different chemical elements having same atomic mass. Atomic numbers of all isotopic forms of a single element are equal

ANSWER

Derive an equation for position time relation with graphical method

Posted by Shreya . M 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Himesh Popat 4 years, 6 months ago

Answer by mistake ?

Himesh Popat 4 years, 6 months ago

Vcxx

ANSWER

Mastishk Mein sthit uttak ka naam kya hai

Posted by Jaya Koli 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Pinak Panigrahi 4 years, 6 months ago

Nervous tissue

Saurav Shukla 4 years, 6 months ago

Plz tell in English

ANSWER

Non uniform motion

Posted by Kunal Sharma 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Rishi Raj 4 years, 6 months ago

A body is said to be in a non-uniform motion if it travels unequal distances in equal intervals of time. ... Therefore, we can say that the motion of a freely falling body is an example of a non-uniform motion. The distance-time graph of the non-uniform motion is a curved line.

Sûsh@Ñt R@J 4 years, 6 months ago

A body has non-uniform motion if it travels unequal distance in equal time interval of time

ANSWER

Write a method to separate a mixture of salt and ammonia chloride.

Posted by Shubham Rai 4 years, 6 months ago

CBSE > Class 09 > Science

3 answers

Rishi Raj 4 years, 6 months ago

We can seperate the mixture of ammonium chloride and salt through sublimation process. The process by which the change of gaseous state directly to solid state without going through liquid state, and vice versa. Sublimation is the method of separation used to separate a mixture of salt and ammonium chloride.

Puneet Kour 4 years, 6 months ago

Sublimation

Anushka Raghuwanshi 4 years, 6 months ago

Sublimation

ANSWER

Define mass number

Posted by Mridhulla S 4 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Aditi Kumari 4 years, 6 months ago

The total number of protons and neutrons present in one atom of an element is known as its mass number . Mass number =no. of proton + no. of neutron

Shigofa Siddiqui 4 years, 6 months ago

The sum of protorn and newtron present in nucleus of the atom is called mass no.

Ayaan Ansari 4 years, 6 months ago

Quation is wrong right question is what is Atomic Mass

Sudha Gupta 4 years, 6 months ago

The sum of total number of protons and neutrons present in the nucleus of atom, is called mass number.

Naitik Gupta 4 years, 6 months ago

The sum Of proton and neutron is called Mass number

ANSWER

What is an atomic number?state it's characteristics

Posted by Meghwal Pinky 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Bijayshree Laxmi Das 4 years, 6 months ago

The number of protons in the nucleus of an atom is known as atomic number. which is characteristic of a chemical element and determines its place in the periodic table.

ANSWER

Different between xylem and phloem

Posted by Adam Rock 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Harpreet Singh 4 years, 6 months ago

Xylem-Phloem•DefinitionXylem tissues are the tubular-shaped structure, with the absence of cross walls. This tissue resembles the shape of a star.Phloem tissues are tubular-shaped, elongated, structures with the presence of walls with thin sieve tubes.•LocationIt is located in the centre of the vascular bundle.It is located on the outer side of the vascular bundle.•FibresXylem fibres are smaller.Phloem fibres are larger.•Found InThey are present in roots, stems and leaves.They are present in stems and leaves, which later transports and grow in roots, fruits and seeds.MovementsThese tissues move in a Unidirectional. (only in one direction – upward direction)These tissues move in a Bidirectional. (both ways – up and down)Comprises They live with hollow dead cells.They live with cytoplasm without the nucleus.No of TissuesThe total amount of xylem tissue is more.The total amount of phloem tissue is less.FeaturesIt consists of tracheids, vessel elements, xylem parenchyma, xylem sclerenchyma and xylem fibres.It consists of four elements: companion cells, sieve tubes, bast fibres, phloem fibres, intermediary cells and the phloem parenchyma.FunctionsTransports soluble mineral nutrients and water molecules from the roots to the aerial parts of the plant.Transports food and other nutrients including sugar and amino acids from leaves to storage organs and growing parts of the plant.Vascular BundlesForms vascular bundles with phloem.Forms vascular bundles with xylem.FunctionsProvides mechanical strength to the plant and helps in strengthening the stem.Translocates the synthesized sugars by the photosynthetic areas of plants to storage organs like roots, bulbs and tubers.FunctionsIt is responsible for replacing the total amount of lost water molecules through transpiration and photosynthesis.It is responsible for transporting proteins and mRNAs throughout the plant.

Mohit ****** 4 years, 6 months ago

Xylem provide water to plants and pholem provide food to plant

ANSWER

Derive the law of conversation of energy.

Posted by Aditya Thakur 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Mysterious K.R. 4 years, 6 months ago

Energy cannot be destroyed or made in a chemical reaction

ANSWER

What is the fraction of the mass of water due to neutrons?

Posted by Pratik Dash 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Aryan Today'S New 4 years, 6 months ago

8/18

Reena Baghel 4 years, 6 months ago

188 =94

ANSWER

Draw the diagram of smooth muscle cell and a sperm cell. Comment on the variety of shapes of cell by taking two more examples.

Posted by Priyanka Varindani 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Daksh Chauhan 4 years, 6 months ago

If you have the NCERT textbook of science you can get it on www.cbsetuts.in

ANSWER

What are stomata

Posted by Striker 09 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Mansi Yadav 4 years, 6 months ago

The tiny particles in plant leaves is called stomata

Reena Baghel 4 years, 6 months ago

Stomata are tiny openinga or poers that enable gaseous exchange stomata are usually found in plant leaves , but they can also be found in the some stems . Apart from water vapour l9ss in transpiration , exchange of oxygen and carbon dioxide in the leaf also occurs through these stomata

ANSWER

Why the electrons revolving in definite orbit does not radiate its energy??

Posted by Ashwani Gupta 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Daksh Chauhan 4 years, 6 months ago

Actually when a electrons revolving in a definite orbit its radiate its energy suppose a electron is at M shell it revolves then it radiate energy it fall down to L shell then K shell at the last of it unit of its energy losses uis falls to the nucleus of the atom and this become negligible. THANK YOU FOR A GOOD QUESTION

Hardick Choudhary 4 years, 6 months ago

If you are moving does you radiate energy.no,because if you are at rest you can radiate energy that time

ANSWER

Write univesal law of gravitation?

Posted by Moksha Sahu 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Himanshi Chauhan 4 years, 6 months ago

Every object in this universe attract with each other which is directly proportional to distance between them and inversely proportional to the square between them. ????

Sandhya Tripathi 4 years, 6 months ago

Newton's Law of Universal Gravitation states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

ANSWER

Difference between mixture and compound in a very simple wat

Posted by Priya Prasad 4 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Reena Baghel 4 years, 6 months ago

Mixtures =1) elements or compounds just mix together to form a mixture and no new compound is formed 2)a mixture has a variable composition 3) a mixture shows the properties of the constituent substance 4)the constituents can be seperated fairly easily by physical methods Compounds = 1) element react to form new compounds 2) the composition of each new substance is always fixed 3) the new substance has totally different properties 4) the constituents can be separated only by chemical or electrochemical reactions

Daksh Chauhan 4 years, 6 months ago

When two matters are mixed it form mixture. If two element are mixed then it is compound

Ashwani Gupta 4 years, 6 months ago

When two or more elements or compound mixed in any proportion said to be mixture. But when two or more elements react form compound.

Ritik Kumar 4 years, 6 months ago

Mixture is impure but element is pure

ANSWER

Difference between acute diseases and chronic disease

Posted by Aman Kumar 4 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Aditya Thakur 4 years, 6 months ago

Acute Disease :- 1. They are short duration diseases. 2. Patient recovers completely after the care. 3. There is no loss of weight or feeling of tiredness afterward. 4. There is short duration loss of work and effiency. Chronic Disease :- 1. They are long lasting Disease. 2. Patient does not recover completely. 3. There is after loss of weight of feeling of tiredness. 4. There is a prolonged loss for work and effiency.

Himanshi Chauhan 4 years, 6 months ago

Diseases which remain for short period of time is called acute diseases eg- cold. Disease which remain long span of time is called chronic diseases eg- cancer tuberculosis...

Sandhya Tripathi 4 years, 6 months ago

Acute Disease :- 1. They are short duration diseases. 2. Patient recovers completely after the care. 3. There is no loss of weight or feeling of tiredness afterward. 4. There is short duration loss of work and effiency. Chronic Disease :- 1. They are long lasting Disease. 2. Patient does not recover completely. 3. There is after loss of weight of feeling of tiredness. 4. There is a prolonged loss for work and effiency.

Prajakta Karmude 4 years, 6 months ago

Diseases that occur suddenly and last for few days are known as acute diseases.for example - cold ; Diseases that occur over a period of time and stay longer in our body , may be for life time are called chronic disease.for example - Cancer, Asthma,etc

Aman Kumar 4 years, 6 months ago

Pls give me answer

ANSWER

The natural painkiller released in our brain are

Posted by Neel Shetty 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Somansh Sarvesh 4 years, 6 months ago

Endorphins

ANSWER

What is the conservation of momentum??

Posted by Mansi Kumari 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Harsh Raj 4 years, 6 months ago

When collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

ANSWER

Calculate the number of aluminium ions present in 0.051 g

Posted by Aman Sharma 4 years, 6 months ago

CBSE > Class 09 > Science

1 answers

Pinak Panigrahi 4 years, 6 months ago

6.022× 10^ 20

ANSWER

My exam is tomorrow and I haven't study anything so pls suggest me what will I do

Posted by Khushal Goyal 4 years, 6 months ago

CBSE > Class 09 > Science

5 answers

Puneet Kour 4 years, 6 months ago

Do hard work

Reena Baghel 4 years, 6 months ago

Do hard work

Hardick Choudhary 4 years, 6 months ago

Pawri hard

Ritika Arya? 4 years, 6 months ago

Do important questions

Anushka Agarwal 4 years, 6 months ago

Do one thing.....do the cbse important questions in the cbseguide app from every chapter coming in your syllabus.

ANSWER

distinguished between speed and velocity

Posted by Roshan Gupta 4 years, 6 months ago

CBSE > Class 09 > Science

4 answers

Daksh Chauhan 4 years, 6 months ago

Speed is with only direction but velocity is with direction and magnitude

Akshat Sharma 4 years, 6 months ago

It's vector quantity (velocity) and it's scalar quantity (speed)

Udit Narayan Tiwary 4 years, 6 months ago

The distance travelled by an object per unit time is called speed. The displacement of the object per unit time is called velocity.

Khushal Goyal 4 years, 6 months ago

Speed is speed and velocity is velocity simple

ANSWER

Explain why chlorine whether as the element or compound always has relative atomic mass of 35.5u?

Posted by Likhita Gvk 4 years, 6 months ago

CBSE > Class 09 > Science

2 answers

Anushka Agarwal 4 years, 6 months ago

It is because chlorine has a pair of isotope Cl-35 and Cl-37 Hence the average is taken out depending upon the existence percentage of the isotopes in nature.

Krisha Shah 4 years, 6 months ago

It is its average atomic mass of all forms of chlorine.

ANSWER

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