Two students are standing 2.2 meters apart and shake a jump rope, creating a standing wave with 5 antinodes. What is the wavelength of the standing wave?

this could be newton#'s law of cooling. the cooling curve is exponential

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 =