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Which material is having better sound absorption coefficient glass wool or pu foam And how it is?
Wiki User
∙ 11y ago
pu foam
Wiki User
∙ 11y ago
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What is better the one having less or more Thermal Expansion Coefficient?
Depends on your application. The Thermal Expansion Coefficient is a number which represents how much a material will physically expand with an increase in temperature. If you want it to grow as it heats, it is the better material.
Do The resistance of a material generally increases as its temperature increases?
The answer to this depends on the material from which the resistance is made. For most materials resistance increases with increasing temperature. This is referred to as having a "positive temperature coefficient". Some materials have a negative temperature coefficient; these do have uses in electronics.
Why is having a larger sample size be a better idea than having a small sample size when doing a experiment?
1. Better chance of uniform sample. 2. Material for confirmations if needed.
Effects of having a coefficient in front of the absolute value?
A coefficient in front of the absolute value sign means to multiply that coefficient by the absolute value in the problem. For instance 3*ABS(-3) = 3*3 = 9.
What is a factor that is not the product of polynomials having integer coefficients?
(2/3)x - 6 has a rational coefficient. (sq root 2)x + 4 has an irrational coefficient.
Correlation between Ph Pka and absorption of drug?
Drug is available as ionised form and unionised for at particular pH. If unionsed drug concentartion is high at particular pH. The drug will be having better absorpation.
Is it always possible to determine the coefficient of uniformity and coefficient of curvature for all types of soils?
Determining the Coefficient of Uniformity (Cu) and Coefficient of Curvature (Cc) only has meaning when classifying coarse-grained soils, i.e. clean gravels (GW or GP) and clean sands (SW or SP) having more than 50% of material larger than No. 200 sieve with less than 5% fines. Gravels and sands with more than 12% fines (GM, GC, SM, SC) are distinguished using Atterberg limits. There would be no reason to determine these coefficients for fine-grained soils (i.e. clay, silt and peat).
Advantage of having a long small intestine?
There will be more absorption of nutrients
What do black objects do well?
Absorption of heat. Black objects having higher power of heat absorption than any other objects. So you will always be warmer in a black car (or a black shirt).
What is the difference between absorption loss and scattering loss?
absorption: having a change in energy from source to the receiver by its medium scattering by particles: occurs without a change in energy, but results in a change in direction of propagation
Which are the two organelles having their own genetic material. What is their significance?
Nucleus & Mitochondria are the two organelles having their own genetic material.
What is the purpose of having numerous villi in the intestine?
It increases the surface area so absorption takes place easier.
