CBSE > Class 09 | CBSE Board | Homework Help

Science and technology have simplified our lives. They have made our sleeping, cooking, and commuting processes easier and faster, respectively, with the help of objects such as A.C., microwaves, and vehicles!

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If √5=2.236 and √3=1.732. Find the value of 2/√5 + √3 + 7/√5-√2

Posted by Yuvraj Dwivedi 2 years ago

CBSE > Class 09 > Mathematics

1 answers

Chirag Sharma 2 years ago

17√5 + 5√3 - √2

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Can I get the question answer ch 4

Posted by Ansumi Chetia 2 years ago

CBSE > Class 09 > Science

4 answers

Account Deleted 2 years ago

How do thomson's model of an atom describe about ☺️

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Account Deleted 2 years ago

What are called canal rays

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Jyoti Maurya 2 years ago

Where are the girl what traditional Indian dresses Santosh

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Prachi Gautam 2 years ago

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A matchbox measure 4cm*2.5cm*1.5cm what will be the volume of a packer containing 12 such box

Posted by Rani Chauhan 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Chirag Sharma 2 years ago

180

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Uttam Verma 2 years ago

Match box is a cuboid having its length(l), breadth(b) and height(h) as 4 cm, 2.5 cm and 1.5 cm respectively. Volume of 1 match box = l × b × h = ( 4 × 2.5 × 1.5 ) c m 3 = 15 c m 3 Hence, Volume of 12 such matchboxes = ( 15 × 12 ) c m 3 = 180 c m 3

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Summary ch reach at the top

Posted by Ujjwal Gupta 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

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mitti ko matrarupa swaroop kon pradan karta hai? tatha uske matrarupa vanne ki prakriya ko spast kijie

Posted by Sintu Prajapat 2 years ago

CBSE > Class 09 > हिंदी ए

0 answers

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how did Santosh developed her like for mountain climbing

Posted by Piyush Purohiy 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

Explain Hitler foreign policy

Posted by R K 2 years ago

CBSE > Class 09 > Social Science

1 answers

Neetu Sharma 2 years ago

Monsoon as unflying bond

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What is the smallest number

Posted by Ashutosh Chauhan 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Arshdeep Kaur 1 year, 10 months ago

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Ashutosh Chauhan 2 years ago

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MCQ test

Posted by Account Deleted 2 years ago

CBSE > Class 09 > Social Science

1 answers

Yui Yuki 2 years ago

Bolshevik

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Bbc moduel 6 solved

Posted by Harshit Goel 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

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What are function? Explain the different parts of a function

Posted by Siddharth Sharma 2 years ago

CBSE > Class 09 > Information Technology (402)

0 answers

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Free Hulk and was organised by your school during the term break well known as specialist were invited on this occasion write a description on the event in about 100 words

Posted by Amit Ray 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

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Free Health camp was organised by your school during autumn break well known health specialist were invited on the occasion

Posted by Amit Ray 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

A paragraph on la tomatina

Posted by Ali Raza Mansuri 2 years ago

CBSE > Class 09 > English Lang & Lit. (184)

0 answers

ANSWER

Find the zeros of p(x) = 5x + 8/11

Posted by Kanishka Ingale 2 years ago

CBSE > Class 09 > Mathematics

3 answers

Arshdeep Kaur 1 year, 10 months ago

P(x)=5x+8/11=0≈5x=11/8≈x=11/8×5≈x=11/40

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Uttam Verma 2 years ago

p(0)=5(0)+8/11 p(0)=8/11

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R K 2 years ago

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A hemispherical bowl is made of steel, 0.25cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface area of the bowl.

Posted by Praveen Patidar 2 years ago

CBSE > Class 09 > Mathematics

2 answers

Uttam Verma 2 years ago

Inner radius of hemispherical bowl = 5 cm Thickness of the bowl = 0.25 cm ∴ Outer radius (r) of hemispherical bowl = (5 + 0.25) cm = 5.25 cm Outer CSA of hemispherical bowl = 2r2 Therefore, the outer curved surface area of the bowl is 173.25 cm2.

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Uttam Verma 2 years ago

r = 5 c m , thickness of steel sheet = 0.25 c m ⇒ R = 5 c m + 0.25 c m = 5.25 c m outer curved surface area of the bowl = 2 π R 2 = 2 × 22 7 × 525 100 × 525 100 c m 2 = 173.25 c m 2

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What are the limitations of Rutherford's model of the atoms ?

Posted by Dev Pal 2 years ago

CBSE > Class 09 > Science

5 answers

Khushi Pundir 2 years ago

His model was failed to explain that how the electrons were revolving around circular path without falling into the centre of the atom that is nucleus

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Account Deleted 2 years ago

His model failed to explain the stability of atoms. The arrangement of electrons in a circular path was not defined. Any particle that is moving in a circular path would undergo acceleration and radiates energy. Thus, the revolving electron would lose energy and finally fall into the nucleus.

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Ansh Yadav 2 years ago

Rutherford model discovered a proton in1886 Rutherford ford take a gold foil and pass a rays

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Chitresh Kumar 2 years ago

Rutherford model of an atom doesn't has neutron and energy levels

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Gautam Patel 2 years ago

Rutherford model is a watermalen me

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Describe Albert Einstein childhood