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Define the term speed in short

Posted by Jasvir Kaur 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 4 years, 1 month ago

Speed: Distance travelled by the object in unit time.
The SI unit of speed is metre per second. This is represented by the symbol m s^–1 or m/s.
Speed is a scalar quantity; it only has direction.
Speed = Distance/ Time

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Bhumika Sharma ✓ 4 years, 1 month ago

Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance............nice to help u ☺️

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ANSWER

What is the location of genes

Posted by Uvais Zaidi 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Bhumika Sharma ✓ 4 years, 1 month ago

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene..............nice to help u ☺️

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ANSWER

What is brownish substance

Posted by Vedant Gupta 4 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Vedant Gupta 4 years, 1 month ago

Yes bhumika

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Sneha Singh 4 years, 1 month ago

Syllabus kya hai mathematics Ka 2020

2Thank You

Bhumika Sharma ✓ 4 years, 1 month ago

Do u mean what is brown discharge ? ?

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ANSWER

What is drag

Posted by Vedant Gupta 4 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Bhumika Sharma ✓ 4 years, 1 month ago

Welcome ☺️❤️

3Thank You

Vedant Gupta 4 years, 1 month ago

Thank you bhumika

3Thank You

Bhumika Sharma ✓ 4 years, 1 month ago

Drag is the aerodynamic force that opposes an aircraft's motion through the air. Drag is generated by every part of the airplane (even the engines!). ... Drag is generated by the difference in velocity between the solid object and the fluid. There must be motion between the object and the fluid................nice to help u ☺️

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ANSWER

Why are lysosomes known as suicidal bags

Posted by Abhishek Singh 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Naina Gupta 4 years, 1 month ago

Lysosomes are the cellular organelles that contains digestive enzymes, that break down waste material forgine materials and forgine particles that entired cells. So Lysosomes are known as suciedal bags

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Yogita Ingle 4 years, 1 month ago

Lysosomes are sphere-shaped sacs filled with hydrolytic enzymes that have the capability to break down many types of biomolecules. Lysosomes are known as suicide bags of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials.

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ANSWER

What is combine ?

Posted by Aman Mishra 4 years, 1 month ago

CBSE > Class 09 > Science

3 answers

P R I N C E 4 years, 1 month ago

Mixing 2 components with each other

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Bhumika Sharma ✓ 4 years, 1 month ago

To join or mix 2 or more things together is known as combining............nice to help u ☺️

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Naina Gupta 4 years, 1 month ago

I Don't know

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ANSWER

Who discovered cells and how?

Posted by Prince Suthar 4 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Devdatt Kumar Ujjwal 4 years ago

In 1665, Robert Hooke discovered cell while examining a thin slice of cork through a self designed microscope.He observed that the cork resembled the structure of the honeycomb consisting numerous tiny compartments.This minuscule boxes were referred to as cells.

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Ananya Singh 4 years, 1 month ago

Robert hooke discovered the cell while seeing in the slice of cork through a self designed microscope

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Shreya B 4 years, 1 month ago

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Prabhat Kumar 4 years, 1 month ago

Robert Hooke discovered dead cells in1665 in the bark of trees. Anton von leeuwenhoek discovered living cells.

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Prince Suthar 4 years, 1 month ago

Yes

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ANSWER

which of the following are matter?

Posted by Himanshu Singh 4 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Krishna Agrawal 4 years, 1 month ago

Matter are substance made by atom..

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Bhumika Sharma ✓ 4 years, 1 month ago

Himanshu pls provide options so that we could answer u ☺️

1Thank You

Abhishek Singh 4 years, 1 month ago

Tell options also

2Thank You

Prabhat Kumar 4 years, 1 month ago

Ya give options.

3Thank You

Naina Gupta 4 years, 1 month ago

Options to batao

1Thank You

ANSWER

What is SI unit of acceleration

Posted by Tanmay Patil 4 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Shreya B 4 years, 1 month ago

m/s^-2(meter per second square)

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Prabhat Kumar 4 years, 1 month ago

M/S-2 Meter per second square.

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Raju Gupta Raju Gupta 4 years, 1 month ago

m/s-2

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Shikha Ranjan 4 years, 1 month ago

v-u/t

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Akhand Yadav 4 years, 1 month ago

m/s^-2

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ANSWER

Where is cytoplasm located

Posted by Kartik Chhillar 4 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Poonam Anand 4 years, 1 month ago

Cytoplasm is located between cell membrane and nuclear membrane.

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Annu Singh 4 years, 1 month ago

It is located outside the nucleus and inside the plasma membrane. It is a jelly like fluid

1Thank You

Prabhat Kumar 4 years, 1 month ago

Cytoplasm is a jelly like structure which found in nucleus of the cell .

0Thank You

Shikha Ranjan 4 years, 1 month ago

Nucleus

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Naina Gupta 4 years, 1 month ago

Cytoplasm located in cell

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ANSWER

A bullet of mass 20 g is horizontally fired with a velocity 150 m s-1 from a pistol of mass 2 kg. What is the recoil velocity of the pistol?

Posted by Sashi Kumar 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Devdatt Kumar Ujjwal 4 years ago

0Thank You

Yogita Ingle 4 years, 1 month ago

Mass of bullet, m1 = 20g (= 0.02 kg)

Mass of pistol, m2 = 2 kg

Initial velocity of the bullet (u1) and pistol (u2) = 0

Final velocity of the bullet, v1 = +150m s-1

Let v be the recoil velocity of the pistol.

The total momentum of the pistol and bullet is zero before the fire. (Since both are at rest)

Total momentum of the pistol and bullet after it is fired is

= (0.02 kg x 150 m s-1) + (2 kg x v m s-1)

= (3 + 2v) kg m s-1

Total momentum after the fire = Total momentum before the fire

3 + 2v = 0

→v = -1.5 m/s

Thus, the recoil velocity of the pistol is 1.5 m/s.

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ANSWER

Why is it said that earth is 1.5 inch away from earth.

Posted by Aranav Shukla 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Bhumika Sharma ✓ 4 years, 1 month ago

Hey......ur question has an error.........(EARTH is 1.5 inch away from EARTH) that sounds awkward. Pls correct the statement......nice to help u ☺️

1Thank You

Naina Gupta 4 years, 1 month ago

I also don't know

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ANSWER

What si unit of time

Posted by Hemadharshini P 4 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Akhand Yadav 4 years, 1 month ago

second

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Yo ???Yo 4 years, 1 month ago

Second

1Thank You

Jyotirya Agrawal 4 years, 1 month ago

Second

1Thank You

Naina Gupta 4 years, 1 month ago

Second

1Thank You

Aranav Shukla 4 years, 1 month ago

0Thank You

ANSWER

Describe producte of peletalon

Posted by Gautam Yadav 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Bhumika Sharma ✓ 4 years, 1 month ago

I think there is some error in ur question.......pls check it once again.......nice to help u ☺️

2Thank You

ANSWER

Describe products of peletalon

Posted by Gautam Yadav 4 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

Try this search on Google ?-"do a barrer roll" and see the results ????

Posted by Mukul Kumar 😎 4 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Mukul Kumar 😎 4 years, 1 month ago

Also go on the first web site and discover many more interesting things

0Thank You

Bhumika Sharma ✓ 4 years, 1 month ago

Yaa . The Google screen starts rotating ?

2Thank You

Shikha Ranjan 4 years, 1 month ago

Okk

1Thank You

ANSWER

How was the institutional design formed for the indian constitution?? Plz give this answer

Posted by Parth Surmare 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 4 years, 1 month ago

(i) A constitution is mainly about embodying the values into institutional arrangements.
(ii) It is a very long and detailed document. Therefore, it needs to be amended quite regularly to keep it updated.
(iii) So the makers of the Indian constitution made provisions to incorporate changes from time to time. These changes are called constitutional amendment.
(iv) The Constitution describes the institutional arrangements in a legal language.
(v) Like any constitution, the Indian Constitution lays down a procedure for choosing persons to govern the country. It defines who will have how much power to take which decisions.
(vi) And it also puts limits to what the government can do by providing some rights to the citizen that cannot be violated.

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ANSWER

If a planet x has some radius as that of earth but if its mass is double that of Earth then find the acceleration on the surface of the planet x

Posted by Neha Malhotra 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Parth Surmare 4 years, 1 month ago

Let the radius of earth be r The radius of planet x=r Let the mass of earth be M The mass of planet x = 2M g of earth =GM/r^2=9.8m/s^2 g of planet x= G2M/r^2 g of x / g of earth = (G2M/r^2)/(GM/r^2) g of x = 2× g of earth g of x= 2×9.8 =19.6 m/s^2 Hope that it will help

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ANSWER

Which force is responsible for tides in the ocean at night

Posted by Pratyasha Meher 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Manish Kumar 4 years, 1 month ago

Gravitational force

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Parth Surmare 4 years, 1 month ago

Gravitational force

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ANSWER

Water is pure or impure

Posted by Lakshay Malik 4 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Poonam Anand 4 years, 1 month ago

Water is impure, because water is mixture of hydrogen and oxygen

1Thank You

Ananya Singh 4 years, 1 month ago

Pure

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Parth Surmare 4 years, 1 month ago

Water is Pure because it is a compound and compound is pure

1Thank You

Neha Malhotra 4 years, 1 month ago

Pure

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ANSWER

Cartoon making on motion chapter

Posted by Vishnu Kalvakuntla 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Bhumika Sharma ✓ 4 years, 1 month ago

This is the link of a youtube video u can visit here and have a good learning......all the bst ☺️

2Thank You

Bhumika Sharma ✓ 4 years, 1 month ago

https://youtu.be/9sIP0Z-y__c

2Thank You

ANSWER

Differentiate between symptoms and sign

Posted by 05. Devika.S Ix B 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 4 years, 1 month ago

Signs and symptoms are two different things especially used regarding the disease.
Sign are the representation that can be seen by other , they are not usually seen by the person showing it. And it is the things which is visible externally

While the symptoms are the internal feeling of the person. It can only described by the person who is having it. For example of you are having the pain , this pain will only feel by you , not any one else.will know until you tell them.

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ANSWER

What is the right definition of force

Posted by Akib Khan 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Vasu Singhal 18 4 years, 1 month ago

A push or pull of an object is called force SI unit Newtown sing N

1Thank You

Yogita Ingle 4 years, 1 month ago

Force: It is a push or pull on an object that produces acceleration in the body on which it acts.

S.I. unit of force is Newton.

• A force can do three things on a body.

(a) It can change the speed of a body.

(b) It can change the direction of motion of a body.

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ANSWER

What happens when a cell is kept in hypertonic solution

Posted by Vineet Poonia 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Poonam Anand 4 years, 1 month ago

When a cell is kept in hypertonic solution they are swells up

1Thank You

Divya Gupta 4 years, 1 month ago

Hypertonic solution have less water and more solute (such as salt and sugar) than a cell.If you place an animal cell or plant cell in a hypertonic solution,the cell shrink,because it loses water .Water moves from higher concentration inside the cell to lower concentration outside

2Thank You

ANSWER

Is dettol a true solution

Posted by N K 4 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Naina Gupta 4 years, 1 month ago

Yes

0Thank You

Suraj Burnwal 4 years, 1 month ago

I think no it is a colloidal solution

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ANSWER

If one mole of carbon atoms weigh 12 grams, what is the mass (in grams) of 1 atom of carbon?

Posted by Vishnu Priya 4 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Yerrabolu Chakradhar 4 years, 1 month ago

12g or 12U

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What is an earthquake??

Posted by Naina Gupta 4 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Naina Gupta 3 years, 11 months ago

Thanks

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Yogita Ingle 4 years, 1 month ago

An earthquake is the shaking of the surface of Earth due to the sudden release of energy in the Earth’s crust, as a result, seismic waves (also known as S waves)are created. The seismic activities in an area determine the type and intensity of the earthquake.

1Thank You

Dolly Singh 4 years, 1 month ago

Movement of tectonic plates leads to earthquake ..

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Kahakasha Ali 4 years, 1 month ago

Earth sun ka pass ajati hai to earthquake aata hai my answer

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ANSWER

can u give me some ideas of working project of science

Posted by Rashi Yadav 4 years, 1 month ago

CBSE > Class 09 > Science