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What are the three Universal laws of gravitation

Posted by Aayushi Kumari 2 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Navya Dixit 2 years, 1 month ago

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Navya Dixit 2 years, 1 month ago

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Navya Dixit 2 years, 1 month ago

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ANSWER

What do you mean by be motion

Posted by Gautam Jha Jha 2 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Anshu Kumari 2 years, 1 month ago

An oblect I'd said to be motion it change its position with passage of time

Mannat Sekhri 2 years, 1 month ago

An object is said to be motion if it changes its position with passage of time.

Arya Shinde 2 years, 1 month ago

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Kunal Gautam 2 years, 1 month ago

When object surrounding are changed then we say objects in motion

ANSWER

How the science question paper come by cbse ? Which science portions comes more

Posted by Mannat Mehra 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Mugdha 2 years, 1 month ago

chemistry ch 3 , 4 physics gravitation (derivation) Bio ch 12 , ch 5.ch6

Simak Mohd Simak 2 years, 1 month ago

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ANSWER

Two objects of masses m1 and m2 are dropped in vacuum from a height above the surface of earth(m1>m2). Which one will reach the ground first? Justify your answer.

Posted by Richa Sharma 2 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Shakthi Piriyan 2 years, 1 month ago

Both objects will reach at the same time as the acceleration due to gravity will be the same

ANSWER

Different between cell membrane and paslma membrane

Posted by Smriti Singh 2 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Ankita Yadav 2 years, 1 month ago

Matter is a substance made up various types of particles tha occupied physical space. And has enteriya

Mugdha 2 years, 1 month ago

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Kunal Gautam 2 years, 1 month ago

Both are the same only name different

Muskan Yadav Muskan Yadav 2 years, 1 month ago

What is matter

ANSWER

What is the work to be done to increase the velocity of car from 30km h‐¹ to 60km h‐¹ if mass of the car is 1500kg?

Posted by Utkarsh Wani 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Samrat Pande 2 years, 1 month ago

Change in kinetic energy=work done Change in kinetic energy=1/2m(v^2-u^2) =1/2×1500(60^2-30^2) =750(3600-900) =750(2700) =2025000J

Zaina Khan 2 years, 1 month ago

Convert initial and final velocity in m/s then use the formula 1/2m(v square - u square) you'll get the answer

ANSWER

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

Posted by Twinkle Shekhawat 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Sara Siddiqui 2 years, 1 month ago

Artificial method is used

Sumit Kumar Gupta 2 years, 1 month ago

Cross building method is commonly used for improving cattle breeds

ANSWER

Which organelle is calling the powerhouse of the cell

Posted by Akshay Kumar 2 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Tannu Sishwal 2 years, 1 month ago

Mitochondria are known as the powerhouse of cells. It is because the mitochondrion is the site of cellular respiration where energy in the form of ATP (Adenosine triphosphate) is generated as a result of oxidation of food constituents. This energy is required for various chemical activities needed for life.

Piyush Priyadarshee Behera 2 years, 1 month ago

Mitochondria

Neelam Kunwar Solanki 2 years, 1 month ago

Mitochondria is known as power house of cell because they play a crucial role in generating energy (ATP) through cellular respiration. This organelle converts nutrients into ATP, providing the energy needed for various cellular activities. ATP 👉Adenosine triphosphate

Prashant Kumar 2 years, 1 month ago

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Anirudh Sharma 2 years, 1 month ago

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ANSWER

Define solution, solute and solvent with examples

Posted by Nivedita Niveditha 2 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Tannu Sishwal 2 years, 1 month ago

The solvent is the material that usually decides the solution's physical state (solid, liquid or gas). The solute is the product that the solvent dissolves. A solution of salt and water, for example, has water as the solvent and salt as the solute.

ANSWER

A gas enclosed in a vessel at 30°C cooled in a vessel to attain a new temperature of 10°C. What will happen? (a) Molecular motion will be rapid (b) Molecular Motion stops (c) distance between molecules increases (d) distance between molecules decreases

Posted by Krrish Kumar 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Samrat Pande 2 years, 1 month ago

D. Distance between molecule decreases

Shakthi Piriyan 2 years, 1 month ago

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ANSWER

A body starts from rest and gains a velocity od 6 m/s in 2 s of time . Fimd the acceleration of the body and its average velocity for the given time

Posted by Krishu Kumar 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Samrat Pande 2 years, 1 month ago

U=0m/s V=6m/s T=6s a=? average speed=? a=v-u/t a=6-0/2 therefore, a=3m/s^2 average speed=total distance/total time therefore s=? s=ut+1/2at^2 s=0×2+1/2×3×2×2 therefore s=6m Average velocity=6/2 Therefore average velocity=3m/s

Aman Kumar 2 years, 1 month ago

3m/s2

ANSWER

What is molecular element

Posted by Uday Kumar 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Krishu Kumar 2 years, 1 month ago

Classically, a molecular element (ME) is a pure substance composed of two or more atoms of the same element.

Prince Raj 2 years, 1 month ago

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ANSWER

Find the mass of : 18 moles of O2

Posted by Rishika Bhayre 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Khushi Pal Pal 2 years, 1 month ago

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Sonalika Arora 2 years, 1 month ago

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ANSWER

what are the career opportunities in the hospitality industry answer

Posted by Atul Kumar 2 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

What are the functions of aerolar tissue

Posted by Adhith Mathew 2 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Tannu Sishwal 2 years, 1 month ago

The areolar connective tissue is a type of connective tissue that is present throughout the human body. It provides support and helps to protect organs, muscles, and many other tissues. It also helps to bind the skin together. Provides a protective framework that keeps major structures in place and offers support.

ANSWER

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

Posted by Swapnali Kasar 2 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Tannu Sishwal 2 years, 1 month ago

Mass is the total amount of matter, or "stuff," in an object. Weight is the force of gravity on an object. Mass always stays the same, but weight can change depending on how much gravity is acting upon an object.

Adhith Mathew 2 years, 1 month ago

Mass is the total amount of matter, or "stuff," in an object. Weight is the force of gravity on an object. Mass always stays the same, but weight can change depending on how much gravity is acting upon an object.

Gautam Bhadoriya 2 years, 1 month ago

Ans-1.mass is the quantity of matter that contains in a body 2.mass is remains same every where 3.Its SI unit kilogram(kg) *Weight 1.wieght is the force that acts at all time on all object near the earth 2.weight is not constant it can change everywhere in the universe 3.Its SI unit is Newton(N)

ANSWER

A ball starts from rest and rolls down 16m down an inclined plane in 4 s. (a) What is the acceleration of the ball? (b) What is the velocity of the ball at the bottom of the incline?

Posted by Swapnali Kasar 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Adhith Mathew 2 years, 1 month ago

For (a) answer is 4

Swapnali Kasar 2 years, 1 month ago

Give me answer

ANSWER

What is the meaning of election

Posted by Krishna Sharma 2 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Sakshi Tiwari 2 years, 1 month ago

Election is a mechanism in which people have right to choose their representative at regular interval in free and fair manner

Tannu Sishwal 2 years, 1 month ago

a formal and organized choice by vote of a person for a political office or other position. "the 2008 local council elections

Ekansh Gupta 2 years, 1 month ago

Election means to choose a representative on the behalf of the people that can discussion with people

Lavish Khanna 2 years, 1 month ago

Election is a use to parliament

23 Himanshi 9A 2 years, 1 month ago

choosing a Member of Parliament, President by voting

ANSWER

Which of the following the more inertia AR rubber ball and the stone of the same size be a bicycle and a train I see a 5 rupee coin and Ribbon rupee coil

Posted by Arpit Prajapati 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Tannu Sishwal 2 years, 1 month ago

Stone, train , 5 rupee coin

Lavish Khanna 2 years, 1 month ago

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ANSWER

The outermost shell of an atom cannot have more than eight electrons, even if it has the capacity to accommodate more number of electrons , Why?

Posted by Navya Chuphal 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Ritvik Sai Gpud 2 years, 1 month ago

Because if you fit more than 8 electrons in the outer shell then the valency of each element will be zero and the valencies will be in negative

Anmol Sharma 2 years, 1 month ago

Because of the octate rule they did not accommodate more electrons

ANSWER

A light and a heavy object have the same momentum find the ratio of their kinetic energy which one has larger energy

Posted by Mary . 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Amantullah . 2 years, 1 month ago

Light

Hrishikesh Hari 2 years, 1 month ago

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ANSWER

What should a cattle diet cantain

Posted by Manisha Patil 2 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Arjun Shukla 2 years, 1 month ago

Roughage and concentrate

ANSWER

State newton's second law of motion. Express it mathematically for a body of mass (m) moving with initial velocity (u) and when acted upon by a force F its velocity becomes (v). Define unit of force using this expression.

Posted by Grandma'S Hobbies 2 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Tannu Sishwal 2 years, 1 month ago

Newton's second law of motion states that F = ma, or net force is equal to mass times acceleration. A larger net force acting on an object causes a larger acceleration, and objects with larger mass require more force to accelerate.

23 Himanshi 9A 2 years, 1 month ago

Newton's second law of motion states that F = ma, or net force is equal to mass times acceleration. A larger net force acting on an object causes a larger acceleration, and objects with larger mass require more force to accelerate.

ANSWER

Explain 3 states of matter

Posted by Tushar Tomar 2 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Tanveera Alam 2 years, 1 month ago

Solid liquid and gas. Are the three matter.

Pratyush Kumar 2 years, 1 month ago

What is atom

Grandma'S Hobbies 2 years, 1 month ago

Solid , liquid & gas

ANSWER

The xylem in plant are responsible for

Posted by Kalyani Pandey 2 years, 2 months ago

CBSE > Class 09 > Science

5 answers

Tannu Sishwal 2 years, 1 month ago

The xylems in plants are responsible for the transport of water.

Mayank Shelke 2 years, 1 month ago

Transfer of water

Rohit Keshri 2 years, 1 month ago

For transfer water and mineral

Devwati Gour 2 years, 1 month ago

Transfer of water

Anuj Kr Das Das 2 years, 1 month ago

For transfer for food

ANSWER

Where are protein synthesis inside the cell

Posted by Shishant Yadav 2 years, 2 months ago

CBSE > Class 09 > Science

5 answers

Mayank Shelke 2 years, 1 month ago

Rough endoplasmic reticulum

Devwati Gour 2 years, 1 month ago

Owner of endoplasmic reticulum by risosome

Pawan Sharma 2 years, 1 month ago

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Vrasha Badiger 2 years, 2 months ago

Law of conservation of mass

Rukshar Aamin 2 years, 2 months ago

In endoplasmic reticulum in side of rough

ANSWER

Advantages composite fish culture

Posted by Rishi Kumar 2 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

A boy throws a ball weighing 400g in vertical upward with a initial velocity of 10m/s a) find the initial momentum b) find it momentum at the highest point of it's flight

Posted by Ayush Som 2 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Shakthi Piriyan 2 years, 1 month ago

Initial momentum is 4000kgm/s Final momentum is 0kgm/s

ANSWER

Give one major difference between permanent and meristematic tissues

Posted by Sangeeta Devi 2 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Mayank Shelke 2 years, 1 month ago

The cells divide repeatedly and do not have vacuoles are absent because vacuoles are large and take place .... the cell wall is thin and intercellular space is absent

Rishi Kumar 2 years, 2 months ago

Advantages of composite culture

Nicky Mandal 2 years, 2 months ago

What is matter or non matter?

ANSWER

4. An object of mass 100 kg is accelerated uniformly from a velocity of 15m/s to 20 m/s in 6s. a) find the magnitude of force exerted on the object

Posted by Ananya Rajesh 2 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Lakshay Narang 2 years, 1 month ago

As follow the following F = ma F= 100a For finding a, a =v-u/t a=20-15/6 a=5/6 F=100*5/6 F= 83 Newton (approx)

ANSWER

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