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  • 1 answers

Preeti Dabral 2 years, 10 months ago

distance travelled in 1st second=20m

 

time taken to travel this distance=1s

 

So speed in first second is dist/time = 20m/s

 

Similarly speed in 2nd second is 40m/s

 

Now acceleration = dv/dt

 

Here dv means change in v, where v is velocity and dt means change in t where t is time interval.

 

Change in velocity = final vel. — initial vel.

 

That is, 40-20 = 20m/s

 

And change in time = 2 — 1 = 1s

 

So acceleration is 20m/s / 1s = 20m/s^2 Ans.

 

Metre per second square is the standard unit of acceleration.

  • 1 answers

Preeti Dabral 2 years, 10 months ago

Living cells have certain specific components within it known as cell organelles. Each kind of cell organelle performs a specific function, such as making new materials in the cells, release of waste, transportation, etc. Thus, a cell can perform all its functions with the help of these organelles. That is why the cells are called structural and functional unit of life.

  • 1 answers

Preeti Dabral 2 years, 10 months ago

A chemical is any substance that has a defined composition. In other words, a chemical is always made up of the same "stuff." Some chemicals occur in nature, such as water. Other chemicals are manufactured, such as chlorine (used for bleaching fabrics or in swimming pools).

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  • 2 answers

Preeti Dabral 2 years, 10 months ago

A protein called coat protein II (COPII; green) forms vesicles that transport from the endoplasmic reticulum (ER) to the Golgi. A different protein called coat protein I (COPI; red) forms vesicles for transport in the other direction, from the Golgi to the ER. COPI also forms vesicles for intra-Golgi transport.

Prince Panday 2 years, 10 months ago

Hii
  • 1 answers

Preeti Dabral 2 years, 10 months ago

Relationship between primary key and foreign key: A foreign key is a column or set of columns in one table that references the primary key columns in another table. Difference between primary key and foreign key: Primary key can’t accept null values whereas foreign key can accept multiple null values.

  • 5 answers

Dinorah Jane 2 years, 9 months ago

Did they see a court of animals?

Pratibha Pethkar 2 years, 9 months ago

Did they see a court of animals?

Subham Pradhan 2 years, 9 months ago

Court of animals shown by hom?

Amit Poonia 2 years, 9 months ago

Thanks 😊

Mohd Amir 2 years, 10 months ago

They saw a court of animals
  • 1 answers

Preeti Dabral 2 years, 10 months ago

Here,  ∠PQR=100

Take a point S in the major arc. Join PS and RS.

{tex}\because{/tex} PQRS is a cyclic quadrilateral.
{tex}\therefore \angle \mathrm { PQR } + \angle \mathrm { PSQ } = 180 ^ { \circ }{/tex}
|The sum of either pair of opposite angles of a cyclic quadrilateral is 180o
{tex}\Rightarrow 100 ^ { \circ } + \angle P S R = 180 ^ { \circ }{/tex}
{tex}\Rightarrow \angle P S R = 180 ^ { \circ } - 100 ^ { \circ }{/tex}
{tex}\Rightarrow \angle P S R = 80 ^ { \circ }{/tex} ......... (1)
Now, {tex}\angle \mathrm { POR } = 2 \angle \mathrm { PSR }{/tex}
|The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle
{tex}= 2 \times 80 ^ { \circ } = 160 ^ { \circ }{/tex} ........ (2) |Using (1)
In {tex}\triangle O P R{/tex}
{tex}\because O P = O R{/tex} |Radii of a circle
{tex}\therefore \angle \mathrm { OPR } = \angle \mathrm { ORP }{/tex} ....... (3)
|Angles opposite to equal sides of a triangle are equal
In {tex}\triangle O P R{/tex}
{tex}\angle O P R + \angle O R P + \angle P O R = 180 ^ { \circ }{/tex} | Sum of all the angles of a triangle is 180o
{tex}\Rightarrow \angle \mathrm { OPR } + \angle \mathrm { OPR } + 160 ^ { \circ } = 180 ^ { \circ }{/tex} |Using (2) and (1)
{tex}\Rightarrow 2 \angle O P R + 160 ^ { \circ } = 180 ^ { \circ }{/tex}
{tex}\Rightarrow 2 \angle O P R = 180 ^ { \circ } - 160 ^ { \circ } = 20 ^ { \circ }{/tex}
{tex}\Rightarrow \angle \mathrm { OPR } = 10 ^ { \circ }{/tex}

  • 1 answers

Mehakpreet Kaur 2 years, 10 months ago

write a diary entry about your experience to meet with famous personality.
  • 1 answers

Preeti Dabral 2 years, 10 months ago

The virulent nucleic acid sequence hijacks the cellular machinery to self-replicate, lyse the cell, spread, and infect other cells. Using reverse genetics, the sequence of a viral genome can be identified, including that of its different strains and variants.

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Preeti Dabral 2 years, 10 months ago

social network. A communal structure consisting of individuals or organizations connected with each other through friendship, common interest, commercial transactions, information exchange, or other types of relationship.

  • 2 answers

Diksha Patel 2 years, 10 months ago

Bcz this story is hypothetical

Shreya Shandilya 2 years, 10 months ago

Because this story help to understand the chapter
  • 3 answers

Aarohi Parmar 2 years, 10 months ago

जब उपमेय में अपमान की कल्पना या संभावना की जाए, वहां उत्प्रेषा अलंकार होता है। इसमें मनु, जनु, मनाहु, जनहु, मानो, जानो, वाचक शब्दो का प्रयोग होता है। उदा० सोहत ओढ़े पीत पट श्याम सलोने गात, _मानो_ नीलमणि शैल पर आतप परयो प्रभात। यहां कल्पना हो रही है की जब नीलमणि पर्वत पे सूर्य का प्रकाश पड़ता है तो लगता है मानो श्री कृष्ण पीला वस्त्र पहन कर खड़े हों।

Aarohi Parmar 2 years, 10 months ago

जब किसी शब्द की आवृत्ति एक से अधिक बार होती है, वहां यामक अलंकार होता है। उदा० कनक-कनक ते सौ गुनी मादकता अधिकाय, वा खाए बौराए जाग वा पाए बौराये। यहां कनक शब्द की आवृत्ति दो बार हुई है तथा दोनो बार इसका अर्थ भिन्न है। पहले कनक का अर्थ है सोना जो किसी को जरूरत से ज्यादा मिल जाता है तो वो पागल हो जाता है। दूसरे कनक का अर्थ है नशीला पदार्थ जो कोई खा लेता है तो भी पागल हो जाता है।

Anurag Maraskole 2 years, 10 months ago

Yamak uteksha tatha manvikaran alankar ki paribhasha likhate hue do do udaharan dijiye
  • 1 answers

Gurman Singh 2 years, 10 months ago

They are live in mountain with goat and ship
  • 2 answers

Gourav Kumar 2 years, 10 months ago

Democracy is a form of government in which the rulers are elected by the people

Manoj Lohia 2 years, 10 months ago

Democracy is the Government of the people by the people and for the people
  • 1 answers

Tanvi Yadav 2 years, 10 months ago

Helping hand
  • 5 answers

Smriti Gupta 2 years, 10 months ago

W/t

Shreya Shandilya 2 years, 10 months ago

Total work done /total time taken

Kahan Kalsariya 2 years, 10 months ago

W/t

R.Preety Ramaesh 2 years, 10 months ago

W/t

Prarthana Sajayan 2 years, 10 months ago

Average power = w/t
  • 3 answers

Anshika Bansal 2 years, 10 months ago

Yes

Kiran Pawar 2 years, 10 months ago

Is 12.2 exercise cancelled from syllabus?

Samadhan Biswas 2 years, 10 months ago

Nahi hai
  • 1 answers

Panth Rajput 2 years, 9 months ago

Teri gaand maaru
  • 1 answers

Preeti Dabral 2 years, 10 months ago

2 March 2022
Today I feel much elated after witnessing the spectacular Pashupatinath temple in Kathmandu. It is truly a wondrous piece of art. Since only the Hindus had an access to the visit the shrine, it was totally a chaotic situation outside. Inside the temple, I could see thousands and thousands of worshippers trying to elbow and push each other in their way to reach the front and attract the attention of the priest. The shrine was surrounded by priests, hawkers, devotees, tourists, monkeys, cows, pigeons and dogs roaming about here and there. I feel that this beautiful shrine should be made open for all.
NOTE- This is only a small example. A diary entry is a piece of writing wherein the writer includes informal details and a much deeper experience of his or her surroundings. Students can accordingly add more details to this

  • 1 answers

Preeti Dabral 2 years, 10 months ago

Yes, the wind is regarded as the symbol of destruction in the poem wind, because the wind is said to break the shutters of the windows, throw the books from the shelf and tear the pages and crumble houses, doors, body and heart. In this poem wind is described as a violent natural resource which separates us from belongings and ourselves.

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Preeti Dabral 2 years, 10 months ago

Once in power, the Nazis quickly began to implement their dream of creating a racial society of 'pure and healthy Nordic Aryans.
They were alone considered 'desirables'. (i) The Jews were the worst sufferer in Nazi Germany. The Nazi hatred of the Jews was rooted in the traditional Christian hostility towards them. They had been stereotyped as killers of Christ and usurers. (ii) In Nazi Germany, they lived in separately marked areas called ghettos. They were often persecuted through periodic organised violence and expulsion from the land. (iii)) From 1933 to 1938, the Nazis terrorized pauperised and segregated the Jews, compelling them to leave Germany. (iv) Hitler believed that 'the Jewish problem' could be solved only through total elimination. As a result they were largely killed gas chambers. As many as 6 million Jews were killed by the Nazis, what was known as 'genocidal war'?

  • 2 answers

Nimish Srivastava 2 years, 10 months ago

The nutrients which are needed by the plants in more quantity are known as macronutrients. The plant get these nutrients from soil.

Prarthana Sajayan 2 years, 10 months ago

Some of the nutrients for plants are required in large quantity called the macro-nutrients.As by it's meaning macro means large therefore it is called macro-nutrients.

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