Two cannonballs, a and b, are fired from the ground with identical initial speeds, but with 0a larger than 08 . (a) which cannonball reaches a higher elevation? (b) which stays longer in the air? (
c. which travels farther?

hope it

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 =