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ANSWER

A particle start from a point with a velocity of +6.0 m/s and move with an acceleration of -20m/s² . Show that after 6s the particle will be at the starting point?

Posted by Sweta Soreng 5 years, 4 months ago (4939990)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

ANSWER

A ship moving with a constant acceleration of 36km/h² in a fixed direction speed up from 12km/h to 18km/h . Find the distance traversed by the ship in this period?

Posted by Sweta Soreng 5 years, 4 months ago (4939990)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Given,

Acceleration, a=36km/h²

Initial velocity, u=12km/h

Final velocity, v=18km/h

Using the equation of motion as:

v²−u²=2as

Where, s is distance traversed by ship.

(18)²−(12)²=2(36)s

324−144=36s

s=5km

Distance traversed by ship is 5 Km.

ANSWER

By gometrical method find the all trigometrical ratios of 0°and90° using the properties of gemetry and trigometry

Posted by Vishal Kumar 5 years, 4 months ago (3595963)

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Dsgit

Posted by Pranit Agalave 5 years, 4 months ago (7509500)

CBSE > Class 06 > Computer

0 answers

ANSWER

A train start from a station and move with a constant acceleration for 2m . If it cover a distance of 400m in this period, find the acceleration?

Posted by Sweta Soreng 5 years, 4 months ago (4939990)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

initial velocity (u)= 0m/s
final velocity (v)=400
time(t)= 2 minutes
then,
Acceleration ( a)= v-u/t
= 400/2
= 200m/meter square

ANSWER

Is ncert book is sufficient for cbse12

Posted by Komal Rao 5 years, 4 months ago (9666570)

CBSE > Class 12 > Physics

3 answers

Deep Singh 5 years, 4 months ago (5849429)

Not for maths u go for rd Sharma or rs aggrawal

Mishti ???? 5 years, 4 months ago (8889581)

Ya dear but also do PYQ'S... For good revision & also more n more sample papers. Regards.??

Nayan Dip 5 years, 4 months ago (9673256)

yes very sufficient if you revise it more and more sample papers could help more.

ANSWER

सपनन कने सने रदन पगाठ कने आरगार पर पलीटली मगास्टर प्रलीतम चइद कगा चररत्र रचत्रर कर

Posted by Abhishek Singh 5 years, 4 months ago (5933699)

CBSE > Class 10 > हिंदी ब

0 answers

ANSWER

A bullet hits a wall with a velocity of 20m/s and penetrate it up to a distance of 5cm . Find the deceleration of the bullet in the wall?

Posted by Sweta Soreng 5 years, 4 months ago (4939990)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

u= 20 m/s
v= 0
s = 5 cm = 0.05 m

from 3rd equation,
v² -u² = 2as
⇒0 - (20)² = 2×0.05×a
⇒0.1 a = - 400
⇒a = - 4000 m/s²

deceleration will be - 4000 m/s²

ANSWER

An object dropped from a cliff falls with at constant acceleration of 10m/s². Find its speed 2s after it was dropped?

Posted by Sweta Soreng 5 years, 4 months ago (4939990)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

a = u -v /t

v = u + at

v= 0+ 10*5

= 50 m/s

ANSWER

(41.2+-0.2)°C and (38.6+-0.3)°C. Calculate the right temperature with error

Posted by Vivek Chavan 5 years, 4 months ago (9585673)

CBSE > Class 11 > Physics

0 answers

ANSWER

Write the reasons for practicing bonded labour though it have abolished legally?

Posted by Deku Official 5 years, 4 months ago (8288135)

CBSE > Class 12 > Sociology

0 answers

ANSWER

Why are acidic and basic oxides called so

Posted by Saravanan P 5 years, 4 months ago (8115555)

CBSE > Class 10 > Science

1 answers

Ayush Kashyap 5 years, 4 months ago (9331396)

Metallic oxides are generally basic in nature, and when they mixed in water they forms a base. Non metallic oxides are generally acidic in nature and whey they mixed with water they form an acid . For example mgo when mixed with h20 it forms abse I.e mg(oh)2 And when so2 mixed with h20 it forms an acid ,I.e h2so3,sulphurous acid~~.

ANSWER

Can u pls help me in numericals of chemistry

Posted by Vishal Chhabra 5 years, 4 months ago (9661868)

CBSE > Class 12 > Chemistry

4 answers

Sanjana Dua?????❣️ 5 years, 4 months ago (8790599)

once u send ur problem we all present at every moment to solve ur problem

Sanjana Dua?????❣️ 5 years, 4 months ago (8790599)

U can send ur questions we help u

Usha Yadav 5 years, 4 months ago (9596770)

How we May help you ?????? We want to help you but HOW???? Tell Us...............

Vishal Chhabra 5 years, 4 months ago (9661868)

Of class12.. CBSE

ANSWER

What happened to Abdhullah Kurdi's family?

Posted by Sania .S.S 5 years, 4 months ago (9674656)

CBSE > Class 08 > English

1 answers

Parv Ahuja 5 years, 4 months ago (8906118)

he died in second world war

ANSWER

Write down any five constitutional provisions regarding education in India.Explain briefly

Posted by Lalpekhlui Chhangte 5 years, 4 months ago (9674418)

CBSE > Class 11 > Other Subjects

0 answers

ANSWER

Why do particle of a colloidal solution not settle down when left undisturbed

Posted by Mansi Sahu 5 years, 4 months ago (9092552)

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Colloidal particles are smaller in size. They remain in state of zig-zag motion

(Brownian motion) always, so the force of gravity is encountered and they do not settle down.

But the particles in suspension are larger in size, so they settle down under the influence of gravity.

ANSWER

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the cofficients

Posted by Abhishek Mishra 5 years, 4 months ago (9606626)

CBSE > Class 10 > Mathematics

2 answers

Vishal Kumar 5 years, 4 months ago (3595963)

X^2-(sum of zeroes)+(product of zeroes)

Akásh Pànchàl 5 years, 4 months ago (9551931)

X^2-(sum of zeroes)+(product of zeroes)

ANSWER

What is refracting periscope?

Posted by Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 4 months ago (4803610)

CBSE > Class 10 > Science

3 answers

Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 4 months ago (4803610)

Hii too shiva... Can I know your question? ?

Shivaji Gaykwad 5 years, 4 months ago (9648219)

Hi priya please give answer I want it fast

Yogita Ingle 5 years, 4 months ago (2577571)

Periscope is used to observe objects around an obstacle. The light from the objects enters the periscope from one end and emerges from the other end and enters into our eyes. We use mirrors inside a periscope to make the light bend in the direction we want to see it.

Periscope is an instrument used for observation around or through an obstacle that prevents direct line-in-sight observation from the observer position.

ANSWER

How did saheb get a pair of shoes

Posted by Ed Tabu 5 years, 4 months ago (9390036)

CBSE > Class 12 > English Core

2 answers

Tanya ?? 5 years, 4 months ago (9516882)

Actually, Saheb has got a pair of tennis shoes from a rich boy who has discarded them because of a hole in one of them. He is extremely excited on taking in the shoes because his dream has come true of wearing tennis shoes.

Yogita Ingle 5 years, 4 months ago (2577571)

One morning the writer saw Saheb standing by the gate of the neighbourhood club. Two young men were playing tennis. Saheb was in tennis shoes. On enquiry, Saheb told that some rich boy discarded them because there was a hole in one of them. So he felt no harm in wearing them. It was rather good on his part that the dream of wearing shoes had come true.

ANSWER

Why is tyndall effect not seen in a true solution

Posted by Mansi Sahu 5 years, 4 months ago (9092552)

CBSE > Class 09 > Science

2 answers

Unknown ..? 5 years, 4 months ago (9661642)

Particles are not large enough.

Yogita Ingle 5 years, 4 months ago (2577571)

Tyndall effect is in fact the definite test to show the difference between a true and a colloidal solution. it works on the principle that light beams scatter due to the presence of large colloidal particles in the solution which separate the light however in a true solution the particles are not as large enough to scatter the light particles, thats why Tyndall effect is not seen in true solution.

ANSWER

What is sepoyet

Posted by Raghav Bajaj 5 years, 4 months ago (5700000)

CBSE > Class 08 > Social Science

1 answers

Sia ? 4 years, 9 months ago (6945213)

A sepoy was originally the designation given to a professional Indian infantryman, usually armed with a musket, in the armies of the Mughal Empire.

ANSWER

G iving reason, explain the treatment assigned to the following while estimating national income: 1. Payment of income tax by a firm. 2. Festival gift to employees.

Posted by Gurmel Singh 5 years, 4 months ago (9552406)

CBSE > Class 12 > Economics

2 answers

Ramanpreet Kaur 5 years, 4 months ago (9463268)

Thanks☺️

Yogita Ingle 5 years, 4 months ago (2577571)

(i) Imputed salaries of family members will be included in national income.

(ii) Interest will not be included in national income because borrowings by general government is treated for consumption purposes.

3 Thank You

ANSWER

What is difference between janapadas and Mhajanapadas

Posted by Priyansha Thakur 5 years, 4 months ago (9674553)

CBSE > Class 06 > Social (OLD)

2 answers

Chirag Yadav 5 years, 4 months ago (9203785)

The Janapadas were the major kingdoms of Vedic India. With the development of iron in parts of UP and Bihar, the Janapadas became more powerful and turned into Mahajanapadas. ... There were sixteen such Mahajanapadas during 600 B.C. to 325 B.C. in Indian Sub-continent.

Yogita Ingle 5 years, 4 months ago (2577571)

Janapadas	Mahajanapadas
1500 BC to the 6th century BC	600 BC – 345 BC
The Sanskrit term “<i>Janapada</i>” compound term, made up of two words:<i> janas and pada</i>. <i>Jana</i> means “people” or “subject” The word <i>pada</i> means “foot”	Mahajapadas is a compound term consisting of <i>maha</i> meaning “great”, and <i>janapada</i> meaning”foothold of a people
The Janapada was the highest political unit in Ancient India during this period. They were usually monarchical in nature though some followed a republican form of government	The Mahajanapads still retained their monarchial nature while some of the republics came under the control of powerful oligarchs

3 Thank You

ANSWER

Can we use galvanometer as a voltmeter ? Give reason for your answer.

Posted by Pawan Kumari 5 years, 4 months ago (9252141)

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 4 months ago (2577571)

Voltmeter is an electrical measuring device, which is used to measure potential difference between two points in a circuit. Voltmeter is always connected in parallel to a circuit.
Since Galvanometer is a very sensitive instrument, therefore it can not measure high potential difference. In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the galvanometer.

ANSWER

Write main postulates of electromagnetic wave theory

Posted by Pratham Patel 5 years, 4 months ago (9424849)

CBSE > Class 11 > Chemistry

1 answers

Ruchi Rao 5 years, 4 months ago (9534968)

The main points of this theory are: 1)The energy is emitted from any source continuously in the form of radiations and is called radiant energy. 2)The radiations consist of electric and magnetic fields oscillating perpendicular to each other and both perpendicular to the direction of propagation of the radiation.

ANSWER

Calculate the compound interest and amount on rs 1600 for 1 year at 10% p.a. compounded half-yearly

Posted by Sachi Jain 5 years, 4 months ago (9608906)

CBSE > Class 11 > Applied Maths

1 answers

Sachi Jain 5 years, 4 months ago (9608906)

RS 164 RS1764

ANSWER

In an AP the sum of first n terms is 3n²/2+5n/2. Find its 25th term.

Posted by ☆°••(Prateek)••° ☆ 5 years, 4 months ago (9590819)

CBSE > Class 10 > Mathematics

2 answers

☆°••(Prateek)••° ☆ 5 years, 4 months ago (9590819)

Yes it is very helpful ?✌

Priya ✧*｡٩(๑˙╰╯˙๑)و✧*｡ 5 years, 4 months ago (4803610)

76 is the 25th term... Hope it would be helpful to you?✌

ANSWER

water scarcity factors leading to water scarcity and cause of over exploitation and causes of contamination

Posted by Lakshmi A 5 years, 4 months ago (9674496)

CBSE > Class 08 > Social Science

2 answers

👌Aditya 👌 👌Kumar👌 5 years, 4 months ago (8928481)

ongoing water crisis in India that affects nearly 1 million people each year.[1] In addition to affecting the huge rural and urban population, the water scarcity in India also extensively affects the ecosystem and agriculture. India has only 4% of the world’s fresh water resources despite a population of over 1.3 billion people.[2] In addition to the disproportionate availability of freshwater, water scarcity in India also results from drying up of rivers and their reservoirs in the summer months, right before the onset of the monsoons throughout the country. The crisis has especially worsened in the recent years due to climate change which results in delayed monsoons, consequently drying out reservoirs in several regions. Other factors attributed to the shortage of water in India are a lack of proper infrastructure and government oversight and unchecked water pollution. The acute shortage of water for daily needs has prompted many government and non government organisations to take stringent measures to combat the problem. The Government of India has launched multiple schemes and programs, including the formation of an entire 'Jal Shakti' Ministry to deal with the problem. The government has also insisted on techniques such as rainwater harvesting, water conservation and more efficient irrigation. Agriculture alone is responsible for 80% of the country’s water usage.[2] Several large cities of India have experienced water shortages in recent years, with Chennai being the most prominent in 2019. The shortage of water affected the entire city of 9 million people and resulted in the closure of several hotels, restaurants and businesses. According to a report by the National Institution for Transforming India (NITI Aayog), at least 21 major Indian cities, including the capital New Delhi will completely run out of groundwater by 2020. The report also noted that approximately 200,000 people die in India each year due to the lack of access to safe drinking water.[3] Impact Reasons for scarcity

Yogita Ingle 5 years, 4 months ago (2577571)

Water scarcity in most cases is caused by over- exploitation, excessive use and unequal access to water among different social groups.

<div> Water scarcity may be an outcome of large and growing population and consequent greater demands for water, and unequal access to it. A large population means more water not only for domestic use but also to produce more food. Hence, to facilitate higher food-grain production, water resources are being over-exploited to expand irrigated areas and dry-season agriculture. </div>