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2 years ago

What are the elements in silk?

2 answers:

8 0

Answer:Silk emitted by the silkworm consists of two main proteins, sericin and fibroin, fibroin being the structural center of the silk, and serecin being the sticky material surrounding it. Fibroin is made up of the amino acids Gly-Ser-Gly-Ala-Gly-Ala and forms beta pleated sheets.

Explanation:

Silk emitted by the silkworm consists of two main proteins, sericin and fibroin, fibroin being the structural center of the silk, and serecin being the sticky material surrounding it. Fibroin is made up of the amino acids Gly-Ser-Gly-Ala-Gly-Ala and forms beta pleated sheets.

Dennis_Churaev [7]2 years ago

3 0

Answer:

it is sericin and fibroin

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During the French and Indian war France and Great Britain fought for control of north American territory what impacted the end o

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In 1778, Bill of Rights was made after that, every Americans got liberty, New laws with president and their own country (USA).

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3 years ago

Which sentence explains why optical land telescopes are not able to take images as clear as those taken by the Hubble Space Tele

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7 0

3 years ago

Read 2 more answers

The refractive index is...?

gladu [14]

It’s definitely a dnenebensjdidjd

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3 years ago

An astronaut circles the earth in a satellite at an altitude of 150 km. If the diameter of his pupils is 2.0 mm and the average

Fiesta28 [93]

Answer:

d = 49.5 m

hence we can say it is conceivable that he can distinguish sports stadiums on earth's surface but in Private houses? Cars? it can not becayuse they are are very small

Explanation:

Given data

altitude = 150 km

diameter = 2.0 mm

wavelength = 550 nm

to find out

is it conceivable that he can distinguish sports stadiums

solution

we will apply here formula that is

∅ = 1.2 λ / D

put here λ = 550 × $10^{-9}$ m and D = 2 × $10^{-3}$ m

∅ = (1.2 ) 550 × $10^{-9}$ / 2 × $10^{-3}$

∅ = 3.30 × $10^{-4}$ rad

d = 150 × $10^{3}$ × 3.30 × $10^{-4}$

d = 49.5 m

hence we can say it is conceivable that he can distinguish sports stadiums on earth's surface but in Private houses? Cars? it can not becayuse they are are very small

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3 years ago

Two particles with masses m and 3m are moving toward each other along the x axis with the same initial speeds Vi. Particle m is

nignag [31]

Answer:

$v1 = \sqrt{(2)}Vi$