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Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles or photons.

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Parth Magar 3 years, 3 months ago

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Bandar Gowtham Gowtham 3 years, 3 months ago

Ggh

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Pal D. Pathak 3 years, 3 months ago

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Manan Gulati 3 years, 3 months ago

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Calculate the temperature at which the Celsius and Fahrenheit scale have the same reading

Posted by Aashna Chauhan 3 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Om Dwived 3 years, 3 months ago

-40 degree

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Synthetic

Posted by Mabrur Ahmed 3 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Sanket ... 3 years, 3 months ago

Man made bro

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Mido Ratan 3 years, 3 months ago

Fibers obtained by the process of, petrochemical is called synthetic fibres.

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Subham Kumar 3 years, 3 months ago

Man made fibres are called synthetic fibres

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Om Dwived 3 years, 3 months ago

Fiber made by human through chemical synthesis, as opposed to natural fiber that are directly derived from living organism

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Make chart waste material releted to class 9th

Posted by Akshat Rajput 3 years, 3 months ago

CBSE > Class 09 > Science

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CO2, a cellular waste is eliminated out of the cell while O2 enters the cell from outside. Explain why.

Posted by Aurosish Jena 3 years, 3 months ago

CBSE > Class 09 > Science

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To observe cells under the microscope, Ravi peeled off portions of epidermis from a big and a small onion bulb and immersed those in water. Why? What difference did he observe between the cells of the two bulbs in terms of shape and size?

Posted by Aurosish Jena 2 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 9 months ago

The joule ( jawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m).

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Under what condition is the magnitude of average velocity of an object equal to its average speed ?

Posted by Shivani Soni 3 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Shreya Babu 3 years, 3 months ago

When an object is moving along a straight line

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Ajay Kumar 3 years, 3 months ago

If the object moves in a certain direction.

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Which organelles are known as the kitchen of the cells

Posted by Karandeep Kaur 3 years, 3 months ago

CBSE > Class 09 > Science

5 answers

Parth Magar 3 years, 3 months ago

Chloroplast is known as the kitchen of the cell in animal and plant cell both

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Anmol Preet 3 years, 3 months ago

Chloroplast

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Aditya Raj 3 years, 3 months ago

Chloroplast

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Sneha Jha 3 years, 3 months ago

Chloroplast

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Ananya Maheshwari 3 years, 3 months ago

Chloroplast is known as the kitchen of the cell in animal and plant cell both

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Motion chapter last year question papers

Posted by Parvana Shanil 3 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Kaja Maithen 3 years, 3 months ago

Ninja hattori

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Crazy Ninja Gaming 3 years, 3 months ago

Pagal h

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What does the phythagorean triplet

Posted by Jeevan .B.S 3 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 3 months ago

A Pythagorean triple consists of three positive integers a, b, and c, such that a² + b² = c². Such a triple is commonly written (a, b, c), and a well-known example is (3, 4, 5). ... A triangle whose sides form a Pythagorean triple is called a Pythagorean triangle, and is necessarily a right triangle.

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Aditya Modi 3 years, 3 months ago

A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. ... The name is derived from the Pythagorean theorem, stating that every right triangle has side lengths satisfying the formula a2 + b2 = c2; thus, Pythagorean triples describe the three integer side lengths of a right triangle

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Which is the power house of the cell

Posted by Neha J H 3 years, 3 months ago

CBSE > Class 09 > Science

5 answers

Sneha Jha 3 years, 3 months ago

Mitochondria

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Sandeep Rai 3 years, 3 months ago

Madharchod

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Aditi Tripathi 3 years, 3 months ago

Mitochondria

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Anmol Preet 3 years, 3 months ago

Mitochondria

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Your Crush??? 3 years, 3 months ago

Mitochondria.

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Make a plant cell

Posted by Ritika Sidhu 3 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Aditi Tripathi 3 years, 3 months ago

Search on google

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Make model of plant cell

Posted by Harsh Harsh 3 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Swayam Mistry 3 years, 3 months ago

https://youtu.be/R80ql9xkBKY

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Define latent of fusion. What is the value of latent heat of fusion of ice in SI unit

Posted by Anjali Yadav 3 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Yugan Sankar 3 years, 3 months ago

The amount of heat energy that is required to change 1kg of solid into liquid at atmospheric pressure at its melting point is known as the latent heat of fusion.The value of latent heat of fusion of ice is 3.36×105JKg−1 in S.I. unit of system.

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Make a project of type of cell division with their similarities and differences.

Posted by Palak Prajapati 3 years, 3 months ago

CBSE > Class 09 > Science

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Mohan travels at 20 meter per/sec from home to market and return back at 25meter/second .find his average velocity

Posted by Nishu Singh 3 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 3 months ago

velocity =displacement/time
displacement is the shortest distance travelled by the body
Given ,Mohan travels at 20m/s from home to market and return back at 25m/s
so,displacement in the above case is 0
so velocity =displacement/time =0/time=0

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Sandeep Singh 3 years, 3 months ago

Thanks

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What is the role of pancreas in the body

Posted by Pragati Rao 3 years, 3 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 3 months ago

Pancreas is an abdominal organ located behind the stomach and surrounded by spleen, liver and small intestine. It is a vital part of the digestive system and is responsible for regulating blood sugar levels. The pancreas secretes digestive enzymes such as amylase, proteases and lipase into the duodenum.

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Anmol Preet 3 years, 3 months ago

During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.

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What is matter . Matter is made up of particles . Explain

Posted by Anfa Jaleel 3 years, 3 months ago

CBSE > Class 09 > Science

4 answers

Sia ? 3 years, 3 months ago

Matter is made up of small particles that are too small to be seen, even with a powerful microscope. A glass of water has many water particles which are very minute. Water particles can actually be divided into even smaller units. The pieces of matter that result from dividing a water particle are no longer water. They are examples of the most basic units of matter called atoms .

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Rohit.R. Kashibai 3 years, 3 months ago

Any thing that has mass and occupies space is matter?‍♂️?‍♂️?‍♂️?‍♂️?‍♂️?‍♂️

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Akshita Gupta 3 years, 3 months ago

Matter is anything that occupies space and has mass . Matter is made up of small particles

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Anmol Preet 3 years, 3 months ago

Definition :- Anything that has mass and occupies space.

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Prachi travel a distance of 30 metre towards east then she turns towards north and travel 40 metre in that direction as shown in figure