Answer: Find the answer in the explanation
Explanation:
Helmets are manufactured by the use of different categories of polymer. The common material used for manufacturing of helmets are:
1. Polycarbonate
2. Styrofoam
3. Foam
4. Acrylic and polycarbonate
5. Nylon
All the polymer used for the manufacturing of helmets fall under synthetic and semi synthetic categories of polymer.
The styrofoam is classified under addition polymerization. While the nylon is classified under condensation polymerization.
The low density polythene used is classified as branch chains polymer. While the polycarbonate is of high tensile strength with strong mechanical properties.
Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
Answer:
Explanation:
the solution to the problem is given in the pictures attached. (b) is answered first then (a). I hope the explanation helps you.Thank you
Answer:
I think it is B: Cylinder and Cone sorry if im wrong
Explanation:
Answer:
Hook's law holds good up to. A elastic limit. B. plastic limit. C.yield point. D.Breaking point