CBSE > Class 09 > Science | CBSE Board | Homework Help

The energy possessed by a body due to its change in position of shape is known as potential energy.
The potential energy of a body is given by
PE = mgh
The SI unit of potential energy is joule (J).

0Thank You

Aryan Kushwaha 7 years, 3 months ago

Mass×gravity×height

0Thank You

Kamran Afroz 7 years, 3 months ago

Mgh

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how can l easily solve energy transformation problems

Posted by Sangita Ankita 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

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9x3

Posted by Chetan Kumar 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Yug - 7 years, 3 months ago

Bc 1st std. me jha

1Thank You

Horror Das 7 years, 3 months ago

1Thank You

ANSWER

How will we understant diveesity chapter in short and clearly

Posted by Shreya Tiwari 7 years, 3 months ago

CBSE > Class 09 > Science

5 answers

Ashish Pandey 7 years, 3 months ago

Just learn classification and those 2 flow charts of kingdom animalia and plante

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Yug - 7 years, 3 months ago

Just shake well

1Thank You

Horror Das 7 years, 3 months ago

you have to only memorise the charteristics and features of 5 kingdom classification.you will see that many divisions or phylum 's charactericts are known to u. remembering those wiil be helpful to u. u will see the test will become easy for you. BEST OF LUCK FOR YOUR EXAM.

2Thank You

Shreya Tiwari 7 years, 3 months ago

Plss tell

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Shreya Tiwari 7 years, 3 months ago

Pls tell tommorow is my paper

2Thank You

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Yaar koi law of chemical combination ko explain kr do...plzz....sunday ko test hai mera...

Posted by Simran Kaur 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Saksham Tiwari 7 years, 3 months ago

Law of conservation of mass or law of definite proportions hai isme

3Thank You

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Describe the discovery of a Cahode rays.

Posted by Avishek Vishwakarma 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

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How many years were spent by JJ Thomson in his experiment of cathode rays?

Posted by Avishek Vishwakarma 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

write the expression of kinetic energy ofan object

Posted by Bambhaniya Jay Jay 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Kunal Nawariya 7 years, 3 months ago

1/2 mv*v

1Thank You

Shreeya Gupta 7 years, 3 months ago

1/2mv2

3Thank You

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Iow of constont proportion.

Posted by Vinayak Aggarwal 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Arya Katyayan 7 years, 3 months ago

According to the law of constant proportions : A chemical compound always consists of the same elements combined together in the same proportion by mass

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Explain the various energy transformation while you are riding a bicycle?

Posted by Shivam Yadav 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Shivam Yadav 7 years, 3 months ago

Chemical energy - muscular energy - kinetic energy

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Animal tissues can be epithelial,connective,muscular and nervous tissue.Is it true or false?If true or false explain it.

Posted by Ishwari Ramde 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Horror Das 7 years, 3 months ago

yes its true because epithelial tissue helps in protecting different parts of the body. connective tissue helps to connect our body parts with bones ,blood etc. muscular tissue helps in contraction and relaxation of our muscles. nervous tissue sends stimuli so that we respones to it and move forward.

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Vinayak Aggarwal 7 years, 3 months ago

How soil nirogen formed

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Shivam Yadav 7 years, 3 months ago

It is true because in a animal cell the epithelial tissue plays an important role in the skin and lining of buccal cavity, blood and kidney tubules. The help in absorbtion of water and nutrients. Baad m aap khud padhke learn kr sakte h

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Is potential energy is a scalar quantity or vector quantity?

Posted by Shivam Yadav 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Adarsh Dukare 7 years, 3 months ago

scaler quantity

1Thank You

Shivam Yadav 7 years, 3 months ago

Potential energy is a scalar quantity because all kinds of energy are scalar quantity and it does not have direction

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Which method is commonly used for improving cattle breed and why?

Posted by Anjali Kapoor 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Subhakanta Sahoo 7 years, 3 months ago

The method is known as animal husbandry. Because to fulfil the demands of growing population.

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Is anyone's - alive

Posted by Yug - 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Palak ?? 7 years, 3 months ago

Whattttt?

1Thank You

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In what form do atoms of noble gases occur in nature

Posted by Akash Chaurasia 7 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Palak ?? 7 years, 3 months ago

They occur in independent form means that their atoms are capable of exsisiting independently...

2Thank You

Shivam Yadav 7 years, 3 months ago

The nobel gases exists as single atom such as He, Ne, Ar, Kr

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Who was the discoverer of malaria

Posted by Archana Dubey 7 years, 3 months ago

CBSE > Class 09 > Science

3 answers

Aswinikumar Patra 7 years, 3 months ago

Charles Louis Alphonse Laveran is the discoverer of malaria

1Thank You

Aswinikumar Patra 7 years, 3 months ago

Sorry masti kar raha tha

1Thank You

Aswinikumar Patra 7 years, 3 months ago

I am the discoverer

1Thank You

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Why not in Hindi

Posted by Aman Malik 7 years, 3 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Difference between Dysentry and Diarrohea.

Posted by Ayush Anand 4 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 4 years, 9 months ago

Diarrhea is loose, watery stool that occurs more than three times in one day. How long diarrhea lasts depends on what’s causing it. Some acute cases will resolve quickly, while other cases caused by viruses or parasites, can take a lot longer. If you’ve had it for more than two days, check with your doctor.

Dysentery is loose, watery stools with blood in them. Dysentery is caused by ingesting certain bacteria, most commonly Shigella.

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Is Vaccination and Immunisation are same?

Posted by Ayush Anand 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Subhakanta Sahoo 7 years, 3 months ago

No,it's not same.

1Thank You

ANSWER

What is the law of gravitaional force

Posted by Aryan Rawat 5 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Awanish Mishra 7 years, 3 months ago

It states that everthing palced in earth attract towards each other It is square of distance between them and proportional of its mass

2Thank You

ANSWER

as we know that electron resolve in the outside of the nucleus then why it not fall in the nucleus

Posted by Sangita Ankita 7 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Shivam Yadav 7 years, 3 months ago

According to the electromagnetic theory of physics , if a charged particle undergoes accelarated motion, then it must radiate energy . But now in rutherford model of atom, the electrons are revolving around the nucleus with accelarated motion and they will lose energy and they will fall in the nucleus. This should make the atom unstable and atom will collapse. But we know that electron does not fall in the nucleis but NEIL BOHR model of atom explained that the electron revolve around the nucleus without raditation of energy

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What is antibiotics

Posted by Ritesh Jha 7 years, 3 months ago

CBSE > Class 09 > Science