What is the origin of the variety in the properties of polyurethanes?
What will be an ideal response?
The urethane bond is easily formed with little consequence of the groups that are between the active groups on the polymers. Therefore, a wide variety of structural shapes are possible for these groups. These groups determine the basic properties of the polyurethane and, therefore, give rise to the variability.
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A saddle that is placed too far back on a horse may restrict shoulder movement and cause discomfort. On the other hand, one that is placed too far forward may cause kidney damage and sore backs.
Answer the following statement true (T) or false (F)
Fieldsaver Technologies, a manufacturer of precision laboratory equipment, borrowed $2 million to renovate one of its testing labs. The loan was repaid in 2 years through quarterly payments that increased by $50,000 each time. At an interest rate of 12% per year, compounded quarterly, what was the size of the first quarterly payment?
What will be an ideal response?
One of the common practices used in creating a stucco finish is to _____
a. fasten diamond mesh flat against the sheathing b. apply stucco in four coats c. apply stucco to a thickness of 3/4 inch d. use a stucco lock to prevent water penetration
Use the accompanying figure. How many more feet does it take to stop a car at 30 mph than at 20 mph?
A. 10 B. 20 C. 30 D. 40