Help me please

[nooon]

1. Suppose a freely orienting chain with 1000 segments each of length 7 AO is subjected to a force on its ends of 10-5 N. What will be the average separation of the chain ends?

2. How large a force is needed to elongate the following piece of polymer to a length of 2.54 cm?

Original length = 10 cm.

Area of cross section = 0.1 cm2

Mn = 30,000, Mc = 6000

Density = 0.90 gm/cc

3. Consider a polymer for which the potential energy resulting from attractive forces between the chains decreases markedly as the chains are oriented. What can one say about the effect of these forces upon the equilibrium stress-strain curve for that polymer rubber?

[Michaelangelica]

What are you doing homework for this time of the year/

You should be out surfing and enjoying the sun.

 

1. Suppose a freely orienting chain with 1000 segments each of length 7 AO is subjected to a force on its ends of 10-5 N. What will be the average separation of the chain ends?

2. How large a force is needed to elongate the following piece of polymer to a length of 2.54 cm?

Original length = 10 cm.

Area of cross section = 0.1 cm2

Mn = 30,000, Mc = 6000

Density = 0.90 gm/cc

3. Consider a polymer for which the potential energy resulting from attractive forces between the chains decreases markedly as the chains are oriented. What can one say about the effect of these forces upon the equilibrium stress-strain curve for that polymer rubber?

Is it a Tug-of War?

If so, the Red side will win.

[Tormod]

Hello nooon.

 

Since we don't aim to do people's homework, you'll get more help if you show us how far you're getting in the assignments and which specific problems you have!