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Why do we see water droplets on the outer surface of a glass containing ice cold water ?

Posted by Arpan Chauhan 1 month, 3 weeks ago

CBSE > Class 09 > Science

2 answers

Lipsita Priyadarsini 1 month, 3 weeks ago

The water vapour present in the air on coming in contact with cold water, loses energy and get converted to liquid states , which we see as water droplets

Vineet Yadav 1 month, 3 weeks ago

Because water vapour is in the air which is around the glass containing ice

ANSWER

Momentum formula?

Posted by R Mithun 1 month, 3 weeks ago

CBSE > Class 09 > Science

5 answers

Simranjot Kaur 1 month, 3 weeks ago

P = mv (momentum = mass×velocity)

Rudraksha Medage 1 month, 3 weeks ago

Mass ×velocity

Pari Rai 1 month, 3 weeks ago

(p=Momentum, m=Mass and v=Velocity) Momentum formula:- p=mv

Behatpreet Kaur 1 month, 3 weeks ago

P=mass*velocity

Shubham Kumar Gupta 1 month, 3 weeks ago

p = mv (where, m = momentum of the body, m = mass of the body and v = velocity of the body)

ANSWER

The rate of diffusion of liquids is greater than solid due to

Posted by P Hemant 1 month, 3 weeks ago

CBSE > Class 09 > Science

5 answers

Haritha Sk 1 month, 3 weeks ago

less force of attraction

Shivanshu Gupta 1 month, 3 weeks ago

Less force of attraction

Rudraksha Medage 1 month, 3 weeks ago

Less force of attraction

Pari Rai 1 month, 3 weeks ago

Because particles of liquid are far away from each other than solid

Shubham Kumar Gupta 1 month, 3 weeks ago

because in liquids more intermolecular space in present as compared to the solids

ANSWER

If action always equal to the reaction, explain how a horse can pull a cart.

Posted by Alqama Chaudhary 1 month, 3 weeks ago

CBSE > Class 09 > Science

1 answers

Ayush Kumar Chouksey 1 month, 3 weeks ago

Because of its velocity and acceleration acting on it

ANSWER

Survivability of life in mars.

Posted by Anantha Kumar 1 month, 3 weeks ago

CBSE > Class 09 > Science

0 answers

ANSWER

Short note on gravity

Posted by Pushkar Malviya 1 month, 3 weeks ago

CBSE > Class 09 > Science

2 answers

Nikhil Bhardwaj 4 weeks ago

On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth's surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second.

Yash Gupta 1 month, 3 weeks ago

When Two Objects Are Attract Each Other Is Known As Gravity Or Gravitational Force

ANSWER

Compare between solution suspension and colloid

Posted by Aryan Kumar 1 month, 3 weeks ago

CBSE > Class 09 > Science

0 answers

ANSWER

A uniform cube of edge l 5cm and mass 5kg is kept on a table top .find the pressure due to cube on the table top on the portion where the cube touches the table top

Posted by Ishu Chaudary 1 month, 3 weeks ago

CBSE > Class 09 > Science

1 answers

Aditya Singh Rathore 1 month, 3 weeks ago

Use app Login Question A block of wood is kept on table top. The mass of wooden block is 5 kg and its dimensions are 40cm×20cm×10cm. Find the pressure exerted by the wooden block on the table top, if it is made to lie on the table top with its sides of dimensions (a) 20cm×10cm and (b) 40cm×20cm A (a) P=2440Nm−2 (b) P=610.5Nm−2 B (a) P=2450Nm−2 (b) P=612.5Nm−2 C (a) P=2460Nm−2 (b) P=618.5Nm−2 D (a) P=2470Nm−2 (b) P=712.5Nm−2 Easy Open in App Solution Verified by Toppr Correct option is B) Mass of the wooden block, m=5kg Thrust due to wooden block, Mg=5kg×9.8ms−2=49N (a) Surface area of 20cm×10cm surface, A=(20×10)cm2 =(0.2×0.1)m2 =0.02m2 P=Amg P=0.02m249N=0.0249Nm−2 or Pressure, P=2450Nm−2. (b) Surface area of 40cm×20cm surface, A=(40×20)cm2 =(0.4×0.2)m2=0.08m2 P=0.08m249N=0.0849Nm−2 or Pressure, P=612.5Nm−2.

ANSWER

A man weight 60N on earth if g is 10 meter per second.what is his mass on moon .on moon his weight would be 10 N.What is acceleration due to gravity on moon

Posted by Tanushree Bhawar 1 month, 4 weeks ago

CBSE > Class 09 > Science

3 answers

Niharika Singh 1 month, 3 weeks ago

1.67m/s² will be the acceleration due to the gravitational force on the moon.

Tharani Dharan 1 month, 4 weeks ago

The use the equation mg .

Tharani Dharan 1 month, 4 weeks ago

Acceleration on moon would be 1/6 th of g.

ANSWER

In a tug of war between boys and girls , boys won, did the boys pull the rope with greater force as compared to girls ? Explain

Posted by Parul Sahu 1 month, 4 weeks ago

CBSE > Class 09 > Science

1 answers

Tharani Dharan 1 month, 4 weeks ago

Yes. The net force is is inthe direction of boys as they applied more force than girls .

ANSWER

Define physical education according to Brownell

Posted by Sisodiya Shekhar Sisodiya Shekhar 1 month, 4 weeks ago

CBSE > Class 09 > Science

0 answers

ANSWER

Physical education

Posted by Sisodiya Shekhar Sisodiya Shekhar 1 month, 4 weeks ago

CBSE > Class 09 > Science

0 answers

ANSWER

Differentiate between compost and green manure

Posted by Aahan Mathur 1 month, 4 weeks ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the syllabus of ut4 means after term1 exam

Posted by Shreya Pandey 2 months ago

CBSE > Class 09 > Science

2 answers

Abhishek Harshit 2 months ago

Nervous tissue is a longest tissue

Sunny Yadav 2 months ago

What is nervous tissue

ANSWER

Property of electron

Posted by Ambrish Pandey 2 months ago

CBSE > Class 09 > Science

2 answers

Nikhil Bhardwaj 4 weeks ago

Electrons are the fundamental subatomic particles. Electrons revolve around the nucleus in the fixed orbits. Electron can be represented as e or e- An electron has a definite mass and it carries a definite electric charge. The mass of an electron has been found to be 1/1840 of mass of hydrogen, so it is treated as negligible. An electron carries one unit of negative charge whose magnitude is equal to 1.602 x 10-19 Coulombs

Neeraj Singh 2 months ago

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Posted by Harshit Vithal Suryavanshi Hvs 1 month, 4 weeks ago

CBSE > Class 09 > Science

1 answers

Ankit Jat 2 months ago

Hiiiii

ANSWER

What are the steps to do serial reproduction class 9th

Posted by Harshit Vithal Suryavanshi Hvs 2 months ago

CBSE > Class 09 > Science

2 answers

Chocolate Boy 2 months ago

Atharva........great 💕

Atharva Wadekar 1 month, 4 weeks ago

First put your ***** in ****** and do back and forward the process will start

ANSWER

A molecule can be define as the practice of an _or a_

Posted by Armaanjot Sran 2 months ago

CBSE > Class 09 > Science

1 answers

Amar Singh 2 months ago

गुफ्ब्न्

ANSWER

During first half of a journey a body travel with a speed of articuno per hour and in the next half its travel with the speed of 20 km per hour calculate the average speed of whole journey.

Posted by Shreyansh Saxena 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Cell organelles

Posted by Miss. Unbelievable 2 months ago

CBSE > Class 09 > Science

5 answers

Arpit Kumar 1 month, 2 weeks ago

These are the main cell organelles:- 1. Lysosomes 2. Endoplasmic reticulum 3.golgi apparatus 4.plastids 5.mitochondria 6.vacoules

Saurabh Yadav 1 month, 3 weeks ago

The substances which found inside the cell in cytoplasm is known as cell organelles

Usha 👩‍🎓 1 month, 4 weeks ago

Golgi apparates, nucleus ,vacuels plastids,mitochondria, endoplasmic reticulum ,cell wall in plant cell

Ashmita Dadwal 2 months ago

There are 8 cell organelles 1.Endoplasmic Reticulum (rough endoplasmic reticulum,smooth endoplasmic reticulum ) 2.Golgi Apparatus 3.Lysosomes 4.Mitochondria 5.Plastids 6.Vacuoles 7.Ribosomes 8.centriole

Rohit Luna 2 months ago

ER, RER, SER, GOLGI, APARTER PLASTIDS, VACUOLS, LYSOSOMES, MITOCHONDRIA,

ANSWER

Show how weight of an object in moon is 1/6the weight of an object in earth

Posted by Elangovan Saktheviel 2 months ago

CBSE > Class 09 > Science

2 answers

Shubham Kumar Gupta 1 month, 4 weeks ago

Suppose we have an object of mass 'm'. Let its weight on the moon be 'Wm'. Again suppose that the mass of the moon is 'M' and its radius is a 'R'. Now, according to universal law of gravitation, the weight (force) of the object on the moon will be : Wm = (G × M × m)/R². This is the calculation of the force by which the moon attract any object. Suppose the weight of the same object on the earth be 'We'. Now, we know that the mass of the earth is 100 times that of the moon, and the radius of the earth is 4 times that of the moon. Thus, if mass of moon is 'M', then the mass of the earth will be '100M'; and if radius moon be 'R', then the radius of earth will be '4R'. Now, taking the mass of earth as '100M' and radius of earth as '4R', and applying universal law of gravitation, the weight of object on the earth will be : We = (G × 100M × m)/(4R)² = (G × 100M × m)/16R². Now, dividing the Weight of the moon (Wm) by Weight of the earth (We), we get: Wm/We = (G × M × m × 16R²)/(R² × G × 100M × m) ; Wm/We = 16/100 ; Wm/We = ⅙ ; Wm = ⅙ of We. DERIVED....

Ak Bk 2 months ago

Kya hmare aas paas ke padart sud h

ANSWER

Full form of DNA,

Posted by Aaditya Kumar 2 months ago

CBSE > Class 09 > Science

5 answers

Amit Kumar 2 months ago

Deoxyribo nucleic acid

Shreya Pandey 2 months ago

Deoxyribo nucleic acid

Nidhish Yadv 2 months ago

Deoxy ribo neuclic acid

Puspendar Baghel 2 months ago

Deoxyrebonucleaus acid

Aditya Yadav 1 month, 3 weeks ago

Don't post personal information, mobile numbers and other details.
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ANSWER

A heavy stone is the not pushing it

Posted by Akhilendra Pratap Gopalan Gopalan 2 months ago

CBSE > Class 09 > Science

3 answers

Saniya Shariff 2 months ago

Momentum

Aaditya Kumar 2 months ago

Momentum

Akhilendra Pratap Gopalan Gopalan 2 months ago

1.Inertia 2.momentum 3.area 4.None of these

ANSWER

Why adipose tissue is a connective tissue?

Posted by Aarush Pal 2 months ago

CBSE > Class 09 > Science

3 answers

Abhishek Sharma 1 month, 4 weeks ago

Adipose is a connective tissue because it stores fat and fat got stored in tissue and in that tissue it is stored is known.as connective

Rohit Luna 2 months ago

because it is a connective tissue

Aksha Aksha Saifi 2 months ago

Yes

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Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
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Posted by Kanishka Dahiya 2 months ago

CBSE > Class 09 > Science

0 answers

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Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
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Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Chocolate Boy 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Show that : m1u1 + m2u2 = m1v1 + m2v2

Posted by Bhagyadeb Das 2 months ago

CBSE > Class 09 > Science

1 answers

Rohit Luna 2 months ago

m1u1+m2u2=m1v1+m2v2: shown

ANSWER

A rifle of mass 3kg fires a bullet of mass 0.03kg . The bullet leaves the barrel of the rifle at a velocity 150m/s . If the bullet takes 0.003second to move through its barrel, then calculate the force experienced by the rifle due to its recoil.

Posted by Bhagyadeb Das 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

1st law of Newton's force

Posted by Ruchi Chavan 2 months ago

CBSE > Class 09 > Science

2 answers

Aarush Thakur 2 months ago

(Easy words) It States that every body wants to be at rest until external force is not applied.

Kashak Goyal 2 months ago

Newton's first law of motion state that when an object at rest will remain in rest and an object in motion will continue in motion with the uniform speed unless it is compelled by the external force to change the state of rest or of uniform motion