0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is an example of a translucent object?
wax paper, tissue paper, plastic plates, some plastics.. there r lots of them.. ;) stained glass chruch windows .......... give me more answers pleaz!
A laser beam is incident on wet piece of filter paper atop a sheet of glass whos index of refraction is to be measured what is the index of refraction of the glass?
n = [(R/2)2 + t2]1/2/R/2t is the thickness of the glass plate, R is the inner radius of the outer bright ring you see
Is the R-value of insulation indicate resistance to heat flow?
yes the R-value does indicate resistance to heat flow
What happens to the value of the Gravitational Potential Energy of a system of objects as the value of r increases?
The Potential energy decreases as r increases.
What is the best type of attic insulation?
Insulation is rated in terms of thermal resistance, called R-value, which indicates the resistance to heat flow. The higher the R-value, the greater the insulating effectiveness. The R-value of thermal insulation depends on the type of material, its thickness, and its density. In calculating the R-value of a multi-layered installation, the R-values of the individual layers are added.
What is the r value for asbestos roof sheeting?
R value of asbstos cment roofing sheet ?
What is the r value of a sheet of cardboard?
3-4
What is the r value of a sheet of newspaper?
The r-value of a sheet of newspaper is typically around 0.04 per inch thickness. This means that newspaper provides minimal insulation value compared to other building materials.
What is an example of a translucent object?
wax paper, tissue paper, plastic plates, some plastics.. there r lots of them.. ;) stained glass chruch windows .......... give me more answers pleaz!
What is the R-Value of steel sheet metal?
The R-value of steel sheet metal is relatively low, usually ranging from 0.02 to 0.04 per inch. This means that steel sheet metal is not a very effective insulator and does not provide much resistance to heat transfer. Additional insulation such as foam or other materials is typically needed to improve the thermal efficiency of structures made from steel sheet metal.
What happens to the empty space when a CD-r is burnt?
A blank CD is rather like a blank sheet of paper; so as information is written to it the blank area is replaced with the written information.
What wax burns faster soy or regular?
both r the same
What is the r-value of 2 foam sound board?
I assume you mean 2 inch thick foam sound board??? The answer lies in what type of foam specifically you are speaking of.Polyisocyanurate foam has an rvalue of approx. r-7 per inch,being one of the higher r value foams readily available in 4'x8' sheet size.Polystyrene foam board,commonly found in building centers and home centers,and commonly referred to as "Dow" board has an r value of approx. r-5 per inch.To calculate the 2" thickness you reference,simply double the r value given(r value is generally stated as "r value per inch".Thus ,2" polystyrene has an r value of r-10 (r-5/inch x 2).These are fairly general guidelines,and depending on your application,you may want to find more detailed specifications that speak to degradation of R value over time,properties and characteristics of various foam types,etc,etc.
U value of r-19 insulation?
The U value is the inverse of the R value. For R value 19 insulation the U value is 1/19, or 0.0526.
A laser beam is incident on wet piece of filter paper atop a sheet of glass whos index of refraction is to be measured what is the index of refraction of the glass?
n = [(R/2)2 + t2]1/2/R/2t is the thickness of the glass plate, R is the inner radius of the outer bright ring you see
What has the author R R Vine written?
R. R. Vine has written: 'Hughenden, Queensland, sheet SF/55-1 international index'
What is the r value of air?
the r value of air is pretty high
