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Ask QuestionPosted by Sagarika Loka 5 years, 3 months ago
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Posted by Kashish Sachdeva 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Young’s modulus (Y) can be written as
Y = FL / (Ae)
Rearrange the above equation
F = YAe / L
= YAL / L ………[∵ Elongation (e) = L]
= YA
= 2 × 1011 N / m² × [1 cm² × 10^-4 m²/cm²]
= 2 × 107 N
Force required is 2 × 107 N
Posted by Dimpy Arora 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
Processing of a Fibre into Fabric
The complete process of making or producing Fabrics from fibres includes:
Extraction of fibres either from the plant or animal source.
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A group of filament or staple fibres extracted are twisted together to form a yarn.
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These yarn are twisted tightly and allowed to rotate on the different types of by the rollers, weaved and knitted by passing a different number of yarns together to produce Fabrics.
Finally, the fabrics are produced. These fabrics are treated with chemicals in the textile industries to make different types of clothing materials like cotton fabrics, woollen fabrics, silk fabrics, polyester fabrics etc. Later these fabrics are processed for bleaching to give a smooth, shiny look, colour dying to add colours to the fabric materials and screen printings to design the fabrics.
Process of Making Cotton Fabric
Cotton is picked up from the fields. The seeds are separated by combing. This process is known as ginning.
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Ginned cotton is compressed to form bales. These bales are sent to the spinning mills.
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The cotton bales are loosened and cleaned. This process is known as carding.
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The cotton fibres are then converted into rope-like loose strands. The strands are twisted to make yarns. This process is known as the spinning of cotton yarns.
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The yarns are then used to make fabrics by weaving and knitting.
Posted by Mahalakshmi Bujji?? 5 years, 3 months ago
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Nishtha Kalra 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
(1.1)^(10000) = (1 + 0.1)^(10000)
use formula,
(x + y)^n = nC0.x^n + nC1.x^(n-1)y + nC2.x^(n-2)y^2 + ........+nCn.y^n
(1 + 0.1)^(10000) = 10000C0.(1)^(10000) + 10000C1.(1)^9999(0.1) + ....... other terms
= 1 × 1 + 10000 × 0.1 + ......... other terms .
= (1 + 1000 + .......other terms ) > 1000
hence, (1.1)^(10000) > 1000
Posted by Mahalakshmi Bujji?? 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Polymorphism refers to the existence of two or more forms of individuals within the same animal species.
Polymorphism is common in nature; it is related to biodiversity, genetic variation and adaptation; it usually functions to retain variety of form in a population living in a varied environment. The most common example is sexual dimorphism, which occurs in many organisms. Other examples are mimetic forms of butterflies, and human hemoglobin and blood types.
Coelenterates include a large number of colonial species that contain more than one form of individuals which are called zooids. Coelenterates have two basic zooids, polyp and medusa.
Posted by Metam Veo 2 years, 2 months ago
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Posted by Avanish Kumar 5 years, 3 months ago
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Posted by Aadya Singh 5 years, 3 months ago
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Ranger King 5 years, 3 months ago
Posted by Aadya Singh 5 years, 3 months ago
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Priyanshu Kumar 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Diffusion is a phenomenon where there is a movement of one material move from area of high concentration to the area of low concentration. This means particles or molecules spread through medium. For example, if you spray at the one end of the room you would be able to smell at the other end. This is because of diffusion phenomenon.
Ranger King 5 years, 3 months ago
Posted by Mamta ? 5 years, 3 months ago
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Akshat Mangrola 5 years, 3 months ago
Posted by Riya Riya 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
The p-block is the region of the periodic table that includes columns 3A to column 8A and does not include helium. There are 35 p-block elements, all of which are in p orbital with valence electrons. The p-block elements are a group of very diverse elements with a wide range of properties.
</section> <section itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question">The elements s-block and p-block are so-called because their valence electrons are either in an orbital s or p. These are often called Standard Components, in order to differentiate them from the sequence of
</section>Ranger King 5 years, 3 months ago
Posted by Gargi Jhalani 5 years, 3 months ago
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Mamta ? 5 years, 3 months ago
Posted by Hely Patel 5 years, 3 months ago
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Posted by सत्य सनातन? 5 years, 3 months ago
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Ranger King 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
molecular formula of methane = CH4
we know,
atomic mass of C = 12 g/mol
atomic mass of H = 1 g/mol
so,
molecular mass of CH4 =( 12 + 4 × 1 ) g/mol = 16 g/mol
also we know,
no of molecule = {given weight /molecular weight } × 6.023 × 10²³
here,
given weight = 16 g
molecular weight = 16 g/mol
so,
no of molecules = ( 16/16) × 6.023 × 10²³
= 6.023 × 10²³
Posted by ?Ritesh Gupta☺️ 5 years, 3 months ago
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Ranger King 5 years, 3 months ago
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Aadya Singh 5 years, 3 months ago
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Aadya Singh 5 years, 3 months ago
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First Name 5 years, 3 months ago
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Posted by Royal Thakur ? 5 years, 3 months ago
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First Name 5 years, 3 months ago
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First Name 5 years, 3 months ago
Posted by Jasmeet Raina 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
THE ROOT
- Primary roots are the direct elongation of the radicles.
- Primary roots bear lateral roots of several orders that are referred to as secondary, tertiary roots, etc.
- The primary roots and its branches constitute the tap root system. Example- mustard.
- In monocotyledonous plants, the primary root is short lived and is replaced by a large number of roots originate from the base of the stem and constitute the fibrous root system. Example- wheat plant
- Roots arise from parts of the plant other than the radicle and are called adventitious roots. Example- grass, banyan tree
Posted by Komal Bhadauria 5 years, 3 months ago
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Posted by Komal Bhadauria 5 years, 3 months ago
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Posted by Royal Thakur ? 5 years, 3 months ago
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First Name 5 years, 3 months ago
Posted by Divya Pareya 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
Given,
or
escape speed is given as
v = (2GM / R)1/2
here
M is the mass of the planet
R is the radius of the planet
now, for Mars
vm = (2GMm / Rm)1/2
for earth
ve = (2GMe / Re)1/2 = 11.2 km/s
we are given
Mm = Me/9
and Rm = Re/2
thus, we have
vm = (2GMm / Rm)1/2 = (2G(Me /9) / (Re/2))1/2
or
vm = (2/9)1/2 . (2GMe / Re)1/2 = (2/9)1/2.ve
thus,
vm = 0.4714 x ve
or
vm = 0.4714 x 11.2
so, the escape speed of Mars will be
vm = 5.27 km/s
= 7.47 km/sec.
Posted by Abhinav S S 5 years, 3 months ago
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Gaurav Seth 5 years, 3 months ago
As, it is given that k th term of the A.P. is 5k + 1.
therefore,
ak = a + (k – 1)d
⇒ a + (k – 1)d = 5k + 1
⇒ a + kd – d = 5k + 1
now, on comparing the coefficient of k, we get,
d = 5
and
a – d = 1
⇒ a – 5 = 1
⇒ a = 6
Posted by Ansh Kumar 5 years, 3 months ago
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Tec Om 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
Margo Minco has very aptly and logically titled this short story ‘The Address’. The narrator and her mother were victims of the war. The upheaval forced them to be wanderers. They had no permanent address worth the name. All the ‘nice things’ were at No. 46, Marconi Street. They aroused nostalgic feelings of former times. But their true owner was no more in the world. The narrator resolved to forget them and also the address where they lay.
Posted by Sakshi Chouhan 5 years, 3 months ago
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Anju Anju 5 years, 3 months ago
Gaurav Seth 5 years, 3 months ago
विभिन्न समाचार माध्यमों के ज़रिये दुनियाभर के समाचार हमारे घरों में पहुँचते हैं। समाचार संगठनों में काम करने वाले पत्रकार देश-दुनिया में घटने वाली घटनाओं को समाचार के रूप में परिवर्तित करके हम तक पहुँचाते हैं। इसके लिए वे रोज़ सूचनाओं का संकलन करते हैं और उन्हें समाचार के प्रारूप में ढालकर प्रस्तुत करते हैं। इस पूरी प्रक्रिया को ही पत्रकारिता कहते है .
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Muskan Sharma 5 years, 3 months ago
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