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  • 2 answers

Dnyan Khambadkar 21 hours ago

Mixture

Rishika Rawat 22 hours ago

Solution: Air is a mixture and not a compound because: Air does not have a formula like a mixture, while compounds have a fixed formula. When air is formed by gases, there is no energy change. Properties of air are variable and subjective to time and place.
  • 3 answers

Dnyan Khambadkar 21 hours ago

Mometum. Before Collision =Momentum After Collision

Rishika Rawat 22 hours ago

An example of law of conservation of momentum is Newton's cradle, a device where, when one ball is lifted and then let go, the ball on the other end of a row of balls will push upward. ...

Naveen Sharma 1 day, 2 hours ago

Law of conservation of momentum shows that a object will remain in motion until any external force is not applied example : cradle .
  • 1 answers

Smrity Verma 17 hours ago

Every object in the universe attracts every other object with a force of attraction which is known as grarvitation
  • 1 answers

Mandeep Kaur 2 days, 23 hours ago

Why do we have to use the s=ut+1/2 at^2 formula? The mathematically proven equations are as follows (1) First equation of Motion: V = u + at soln. Consider a body of mass “m” having initial velocity “u”.Let after time “t” its final velocity becomes “v” due to uniform acceleration “a”. Now we know that: Acceleration = change in velocity/Time taken => Acceleration = Final velocity-Initial velocity / time taken => a = v-u /t =>at = v-u or v = u + at This is the first equation of motion. (2) Second equation of motion: s = ut + 1/2 at^2 sol. Let the distance travelled by the body be “s”. We know that Distance = Average velocity X Time Also, Average velocity = (u+v)/2 .: Distance (t) = (u+v)/2 X t …….eq.(1) Again we know that: v = u + at substituting this value of “v” in eq.(2), we get s = (u+u+at)/2 x t =>s = (2u+at)/2 X t =>s = (2ut+at^2)/2 =>s = 2ut/2 + at^2/2 or s = ut +1/2 at^2 This is the 2nd equation of motion. Hope u got it.
  • 2 answers

Rishika Rawat 22 hours ago

For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.

Yashi Choudhary 2 days, 16 hours ago

Conservation of momentum, general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant.
  • 5 answers

Balkrishna Mishra 1 day, 1 hour ago

Rate of change of momentum is directly proportional to unbalanced force applied on it

Balkrishna Mishra 1 day, 1 hour ago

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Nivethitha Maheswaran 2 days, 17 hours ago

The rate of change of momentum is directly proportional to the applied unbalanced force in the direction of force

Sanket 😞 2 days, 22 hours ago

F = m × a

Saloni Sharma 2 days, 22 hours ago

The applied force is directly proportional to the rate of change of linear momentum
  • 1 answers

Sia 🤖 3 days ago

Theory that cells are the basic structural, functional, and organizational units of both single-celled and multicellular organisms; cells divide and pass on hereditary information; and energy flows within cells.

  • 1 answers

Alice Soreng 3 days, 4 hours ago

Collenchyma; .Consist of cell .Intercellular space is not present. .Cell tightly packed. .Deposition of pectin in cell. .Provide flexibility. Sclerenchyma; . Consist of dead cell. .Intercellular space is not present. .cell tightly packed. .Deposition of liginin in cell. . provide hardness.
  • 2 answers

Alka Darade 3 days, 7 hours ago

Answer is) Both assertion and reason are true but reason is not correct explaintion of assertion

Kumkum Sharma Kumkum Sharma 3 days, 14 hours ago

Yes
  • 2 answers

Chandana Kumari 2 days, 3 hours ago

Collenchyma

Sanchit Sharma 3 days, 20 hours ago

Collenchyma
  • 1 answers

Sia 🤖 3 days, 19 hours ago

silver bromide is a pure substance because it is made up of silver and bromine and free from another kind of mixtures.

  • 0 answers
  • 1 answers

Sia 🤖 3 days, 22 hours ago

Let the mass of sodium sulphate required be 'x' g
The mass of water = 100 g
The mass of solution =(mass of sodium sulphate + mass of water) = (x + 100)g
Percentage of sodium sulphate in solution {tex}=\;\frac{Mass\;of\;sodium\;sulphate}{Mass\;of\;solution}\times100{/tex}
{tex}20=\frac{x}{x+100} \times 100{/tex}
20x + 2000 = 100x 
80x = 2000
x = {tex}\frac{2000}{80}{/tex}
= 25 g
Therefore,  the mass of sodium sulphate required is 25 g.

  • 1 answers

Vansh Gupta Gupta 4 days, 15 hours ago

Google pe search kat
  • 0 answers
  • 5 answers

Nikita Bhiduri 2 days, 17 hours ago

Thanks to all

Annie Sharma 4 days, 15 hours ago

Average Velocity = total distance/ total time = (20+30+10) / (1+1+1) = 60/3 = 20 Km/h

Shubham Kumar 5 days, 2 hours ago

20km/h

Aman Kumar 5 days, 18 hours ago

60/3=20km/h

Samridhi Goyal 5 days, 18 hours ago

See train moves straight so distance and displacement are same Average velocity=total displacement/total time taken So 20+30+10/1+1+1 =60/3 =20 m/s so according to me it should be 20
  • 2 answers

Nikita Bhiduri 5 days, 19 hours ago

Option nahi aa raha upload karne ka

Vipin Verma 5 days, 20 hours ago

How to practice of exam
  • 2 answers

Annie Sharma 4 days, 14 hours ago

Man pushes water in the backward direction with a force, an equal amount of force is applied by water on the man in the forward direction. Newton's third law of motion.

Mohammed Junaid T.K Patel 5 days, 23 hours ago

By kicking hands and legs OK
  • 2 answers

Sia 🤖 4 days, 19 hours ago

It is the cells which is present in the blood that helps the blood to stop running out of body. They make a clot to stop the blood.

Vansh Gupta Gupta 4 days, 15 hours ago

Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our bones.
  • 2 answers

Suraj Singh 5 days, 18 hours ago

J.J Thomas was Greek scientist .he is known for his invention of cathod rays

Arshad Ali Nohary 6 days, 15 hours ago

Structure of the atom
  • 1 answers

Shubham Kumar 6 days, 13 hours ago

Water=H2O
  • 2 answers

Priyanka Kumari 6 days, 19 hours ago

Thank u
Parenchyma-1)They are loosely arranged. 2)They are made up of living cells. 3)It stores food. 4)It also provides mechanical support to plants. Collenchyma-1) There is very little intercellular space. 2)They are made up of living cells. 3)It provides flexibility to plants. 4) It also provides mechanical support to plants. Sclerenchyma-1) There is no intercellular spaces. 2) They are made up of dead cells. 3) It provides hardness and stiffness as well as strength to plants. 4) It also provides mechanical support to plants. Thank you🥰🥰
  • 3 answers

Vansh Gupta Gupta 4 days, 15 hours ago

Please give m answer

Vaibhav Mehta 1 week ago

50 km per hour

Sanket 😞 1 week ago

S = 2400km - 2000km = 400km T = 8h Average speed = distance travelled / time taken S/T = 400km/8h =50km h -1

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