A horizontal pipe widens from a radius of 0.110 m to 0.280 m. If the speed of the water is 1.40 m/s in the larger pipe, what is the speed in the smaller pipe (in m/s)

this isn't the answer but they're the graphs

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 =

answer///isobars;