Avery good insulator has an r-value of 29. the material's heat transfer coefficient is

a 14.5

b. 0.034

c. 8.497

d.29

b. 0.034

Explanation:

The heat transfer coefficient of a material (U-value) is equal to the reciprocal of its R-value, therefore:

where

R is the R-value of the material

For the insulator in this problem,

R = 29

Substituting into the equation, we find the heat transfer coefficient:

f=ma newton

f=100x2.5=250n