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What is a element??

Posted by Chahak Chandani 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Manpreet Kaur 3 years, 10 months ago

The substance which cannot be spilt into it's simpler form by applying heat, light and electricity

2Thank You

Honey Sharma 3 years, 10 months ago

A basic form of matter that cannot be break down by chemical reaction

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ANSWER

Distance of sun from earth

Posted by Avinity Singh 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Param Sidhu 3 years, 10 months ago

You can find this by taking the time taken of sun rays as eight minutes and by considering the speed of light then It this values in in the formula of speed it is speed is equal to distance upon Time

0Thank You

Arpit Gautam 3 years, 10 months ago

148.57 million km

1Thank You

ANSWER

What are types of plant and animal kingdom ?

Posted by Priyanshu Kumar Palo 3 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

According to the second law of motion,Force is the cause and outcome of_____ a.accaration b. Impulse c. Momentum d.energy

Posted by Sarthak Gupta 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Srishti Raj 3 years, 10 months ago

Momentum

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Ankit Patel 3 years, 10 months ago

Momentum

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Saroj Jangid 3 years, 10 months ago

Momentum..

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Priyanshu Kumar Palo 3 years, 10 months ago

Momentum

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Srihari P 3 years, 10 months ago

momentum

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ANSWER

Define 1 J of work ?

Posted by Sanket ... 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Diksha Laniya🐥 3 years, 10 months ago

What sanket

0Thank You

Sanket ... 3 years, 10 months ago

1 Joule is amount of work done when a force of 1 Newton displaces a body through a distance of 1m in the direction of the force applied. (Google kr liya ) ?

0Thank You

ANSWER

how many chromosome are present in a cell

Posted by Sri Bhuvaragavan 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Manju Kumari 3 years, 10 months ago

46 and 23 pair

0Thank You

Rutika Tilekar 3 years, 10 months ago

23 pairs

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Rithya Reddy 3 years, 10 months ago

23 pairs Total no - 46

1Thank You

Vishal Mishra 3 years, 10 months ago

How

3Thank You

ANSWER

Define Aerenchyma

Posted by Shubh Barnwal 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Ankit Patel 3 years, 10 months ago

Paranchyma contain air cavities in it . It helps aquatic plant to float on water so it is called aerenchyma

0Thank You

Divyansh Jain 3 years, 10 months ago

The paranchyma cells which have large air cavities to provide buoyancy to the plant are known as aerenchyma.

2Thank You

ANSWER

Aerenchyma

Posted by Shubh Barnwal 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Ishita Sirse 3 years, 10 months ago

Aerenchyma is type of parenchyma which has large cavities and it is present in aquatic plants

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ANSWER

Is there any difference between weight and mass?

Posted by Arjun Gohil 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sanket ... 3 years, 10 months ago

Yes , (I)Mass is a measure of how much force it will take to change that path. Mass depends on how much matter atoms and so on there is in an object; more mass means more inertia, as there is more to get moving.(ii) Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object

2Thank You

ANSWER

What is work done formula?

Posted by Arjun Gohil 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sanket ... 3 years, 10 months ago

Work done = force × displacement

1Thank You

ANSWER

Write a relation between the mass and weight of the body with explanation

Posted by Sweety Yadav 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Mayank Chaudhary 3 years, 10 months ago

Mass of a body is the quantity of of matter (or material) contain in it. Weight of a body is the force with which it is attracted towards the centre of the earth.

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ANSWER

Mirror formula is a relation between object distence , image distence and focal length of a spherical mirror it can be written as 1/u+1/v,R is radius of curvature of the mirror.this formula is valid in all situation for all spherical mirror for all posion of the object consider the case in which a mirror forms a real image of height 4 cm of an object of hieght 1 cm is placed 20 cm away from the mirror ..the distence from the object to image is?

Posted by Anusha Shankar Anusha Shankar 3 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

a motorcar of mass 1200 kg is moving along a straight line with a uniform velocity of. its velocity has slowed down to 36km/h in 4 sec by a force. calculate the accleration and change in momentum. Also find the ammount of force requried.

Posted by Princy Gupta 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Rk Gamers 3 years, 10 months ago

You had left a single information of initial velocity

0Thank You

ANSWER

Which of the following tissue has dead cell

Posted by Kartik Meena 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Arpit Gautam 3 years, 10 months ago

Sclernchyma

0Thank You

Dhanush S 3 years, 10 months ago

Scherenchyma

0Thank You

Balkrishna Mishra 3 years, 10 months ago

Sclerenchymatous

0Thank You

Sanket ... 3 years, 10 months ago

Sclerenchyma is right ans ?

4Thank You

Kartik Meena 3 years, 10 months ago

Epithelial

2Thank You

ANSWER

Who is the father of biology

Posted by Anurag Kumar 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Aviral Tiwari 3 years, 10 months ago

Aristotle

0Thank You

Rishma Bhuyan 3 years, 10 months ago

Aristotle

0Thank You

Mohini Raj 3 years, 10 months ago

Aristotle

2Thank You

Yuvan Yuvan 3 years, 10 months ago

Aristotle

4Thank You

ANSWER

HW- Science Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term ‘work’. • Suma is swimming in a pond. • A donkey is carrying a load on its back. • A wind-mill is lifting water from a well. • A green plant is carrying out photosynthesis. • An engine is pulling a train. • Food grains are getting dried in the sun. • A sailboat is moving due to wind energy. Complete it in your physics copy and submit tomorrow.

Posted by Aasutosh Sahu 3 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Measure the time it takes you to walk from your house to your bus stop or the school. If you consider that your average walking speed is 4 km/h estimate the distance if the bus stop or school from your house.

Posted by Prastuti Baruah 3 years, 10 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is AIDS virus ?

Posted by Sanket ... 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Jaiditya Sinha 3 years, 10 months ago

The term AIDS refers to Acquired Immune Deficiency Syndrome caused by the HIV virus. AIDS is a condition in which the person's immune system weakens to an extent where it is unable to fight any infection.

0Thank You

Yuvan Yuvan 3 years, 10 months ago

HIV causes AIDS and interferes with the body's ability to fight infections

0Thank You

Sanket ... 3 years, 10 months ago

This is just for information not for fun ok ?

1Thank You

ANSWER

? what is the name of that ? Where did it come from? ? People are thinking this as what ??what are the side-effects of this? ? What we can do to prevent this ??? Give example also which we can see this most ? ??

Posted by Ganesh P 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Ganesh P 3 years, 10 months ago

Answer : corona

0Thank You

Pratham Maurya 3 years, 10 months ago

Carona

1Thank You

Sanket ... 3 years, 10 months ago

I think bacteria ?

0Thank You

Ganesh P 3 years, 10 months ago

??? find name of this side image

0Thank You

ANSWER

Name any two groups of mirco- organisms from which antibiotics could be extractet

Posted by J I 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Param Sidhu 3 years, 10 months ago

Bacteria and Fungi

1Thank You

Yuvan Yuvan 3 years, 10 months ago

(Streptomyches produces streptomycin), (penicillin produced by penicillium moulds

0Thank You

J I 3 years, 10 months ago

Ans

0Thank You

ANSWER

How much big is our world

Posted by Sandhiya Sri 3 years, 10 months ago

CBSE > Class 09 > Science

3 answers

Honey Sharma 3 years, 10 months ago

Beyond ur imagination

0Thank You

Yuvan Yuvan 3 years, 10 months ago

5.972*10^24 kg

0Thank You

Nivetha S 3 years, 10 months ago

5.972 × 10^24 kg

4Thank You

ANSWER

What is p in science ?

Posted by Sanket ... 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Sia ? 3 years, 10 months ago

p = m x v. This equation signifies that momentum of a body is the product of its mass and its velocity. Here, p is momentum of the body. m is the mass of the body. v is the velocity of the body.

4Thank You

Sanket ... 3 years, 9 months ago

Thanks ? vese pta tha

2Thank You

Renuka Patil 3 years, 10 months ago

In science p it is the symbol of momentum. P=mv. This equation tells us that momentum of a body is product of It's mass as well as it's velocity. In the above given equation p denotes the momentum of the body, m denotes the mass of the body and v denotes the velocity of the body. You can study it more deeply in science 9 std chapter motion.

1Thank You

Piyush Raj 3 years, 10 months ago

In science, p is symbol of momentum. p=mv

2Thank You

Ishita Sirse 3 years, 10 months ago

The p in science is symbol momentum ..

5Thank You

ANSWER

Why do we breathe?

Posted by Raj Dhwaj Raj 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Param Sidhu 3 years, 10 months ago

Breathing is an involuntary activity which we can't control it is required to overall control the coordination of body from the blood to the functioning of it since we breathe oxygen as it is required for the blood to circulate and other body organs to produce energy you can understand this with an example you would have a bike a bike need a fuel which may be petrol and this is required essentially for the working of the bike if the fuel is not provided to the bike then we can't utilise bike in the similar way oxygen is is fuel for our body which can only be consumed by breathing so this is the big reason why we breathe and this is also the reason behind it an involuntary activity performed by involuntary muscles you may also have heared sone facts that we cant stop our breathe to die this is also so the explanation of this fact .thanks......

1Thank You

Arjun Gohil 3 years, 10 months ago

We breathe through our lungs ?

0Thank You

Rishma Bhuyan 3 years, 10 months ago

Oxygen is essential for life. Normal aur contains 21% oxygen, which we breathe into our lungs so it can enter our bloodstream to help with the proper functioning of our tissues and organs. We also breathe as a way to expel carbon dioxide gas, which is a type of waste our bodies produce.

4Thank You

Raj Dhwaj Raj 3 years, 10 months ago

We breathe to the break down of glucose with the help of oxygen to form A. T. P(Adenosine tri phosphate) this is energy packed to gives us energy.

2Thank You

ANSWER

if a body covers 3 consicutive equal distances with speed v¹,v²,v³ then the average speed of the body will be

Posted by Princy Gupta 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 10 months ago

Car travels 3 equal distances with speeds v1, v2 , v3 . We need to know that average speed is defined as the ratio of total distance to the total time taken.

Cancelling "s" on numerator and denominator :

So final answer :

1Thank You

ANSWER

Anyone can you te me what is momentum

Posted by Anshu Kapri 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Raj Dhwaj Raj 3 years, 10 months ago

The ability to keep increasing or developing the force that makes something move faster and faster are called momentum.

1Thank You

Vipra Chaubey 3 years, 10 months ago

Product of mass and velocity is called momentum..

3Thank You

Sarmista Nath 3 years, 10 months ago

Formula of momentum is p=mv

3Thank You

Raghul M.S 3 years, 10 months ago

Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. ... See also conservation law; angular momentum.

5Thank You

Rishma Bhuyan 3 years, 10 months ago

The quantity of motion of a moving body, measured as a product of its mass and velocity

7Thank You

ANSWER

How much does the sky weigh?

Posted by Arpit Gautam 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Arpit Gautam 3 years, 10 months ago

1.47 lbs per square inch of earth surface

1Thank You

Rishma Bhuyan 3 years, 10 months ago

14.7 lbs per square inch of earth surface

3Thank You

Diksha Laniya🐥 3 years, 10 months ago

How much does air weigh? This means the sky weighs 14.7 lbs per square inch of earth surface which is roughly 11 billion billion pounds. So, you can say that sky weighs one millionth of the mass of the Earth.

3Thank You

Anshu Kapri 3 years, 10 months ago

Sky does not have weight because it is not a thing it is a cloud or gas

2Thank You

Sachin Kumar 3 years, 10 months ago

Can your tell me

4Thank You

ANSWER

What are tissue ?

Posted by Sniawmi Shadap 3 years, 10 months ago

CBSE > Class 09 > Science

5 answers

Sachin Kumar 3 years, 10 months ago

The group of cell

0Thank You

Arpit Gautam 3 years, 10 months ago

Tissue is known as the group of cell

1Thank You

Sanket ... 3 years, 10 months ago

Group cell is known as tissue

0Thank You

Rishma Bhuyan 3 years, 10 months ago

Tissue is a group of cells that have similar structure and that function together as a unit.

0Thank You

Mohd Shadab 3 years, 10 months ago

A group cell is known as tissue

1Thank You

ANSWER

What are plastid?

Posted by Aditi Jain 3 years, 10 months ago

CBSE > Class 09 > Science

4 answers

Ayush Mishra 3 years, 10 months ago

Plastids are organelle which only found in plants not in animals.

1Thank You

Arpit Gautam 3 years, 10 months ago

Plastids refer to the double membrane bound organelles found in plant cells.

1Thank You

Rishma Bhuyan 3 years, 10 months ago

Any of a class of small organelles in the cytoplasm of plant cell, containing pigment or food is called plastid.

0Thank You

Krish G 3 years, 10 months ago

Plastid is present in animal cell plastids are three type chloroplast chromoplast leucoplast

1Thank You

ANSWER

What is respire in plant

Posted by Kt Tiwari 3 years, 10 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 10 months ago

The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. In many ways, respiration is the opposite of photosynthesis. ... As with photosynthesis, plants get oxygen from the air through the stomata.

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ANSWER

Force of gravitation due to earth is called

Posted by Veda Shree 3 years, 10 months ago

CBSE > Class 09 > Science