There is a "dead-air" layer next to your skin that acts as insulation. if the dead-air layer is 5.0 mm thick, what is the person's rate of heat loss by conduction?

2b2t

explanation:

2b2t

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =