what is gravitation force ? what is chlorophyll? what is rayon , nylon , polyster , arcylic ?
Answers
Answer:
1-gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.
2- Chlorophyll is any of several related green pigments found in the mesosomes of cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words χλωρός, khloros and φύλλον, phyllon. Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light.
3- Rayon is a super soft fabric with a luscious fall and better absorbing qualities than cotton. The discovery of this fabric dates back to 1924, when it was finally renamed 'rayon' from artificial silk. It is also the first semi-artificial fabric crafted by man.
4- Nylon fabric is a polymer, which means that it is composed of a long chain of carbon-based molecules called monomers. There are quite a few different types of nylon, but most of them are derived from polyamide monomers that are extracted from crude oil, which is also known as petroleum.
5-Polyester is a category of polymers that contain the ester functional group in every repeat unit of their main chain. ... Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking.
6-Acrylic fibers are synthetic fibers made from a polymer with an average molecular weight of -100,000, about 1900 monomer units. For a fiber to be called "acrylic" in the US, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate....
Answer:
What is Gravitational Force?
According to Newton’s universal law of gravitation,
The force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.
what is chlorophyll?
It's basically a group of green pigments used by organisms that convert sunlight into energy via photosynthesis. First used in 1819, the noun chlorophyll derives from the Greek words khloros, meaning "pale green" and phyllon, meaning "a leaf." Plants use chlorophyll to trap energy from the sun.
what is rayon, polyester, nylon and arcylic?
This all above are synthetic fibres.
HOPE IT HELPS