6. Frustrated with HISTORY, (you never get frustrated in physics) you open the second story classroom window and (to the horror of your teacher but to the secret delight of your
classmates) violently hurl your history book out the window with a velocity of 18 m/s at an
angle of 35 degrees above the horizontal. If the launch point is 6 meters above the ground,
how far from the building will the book hit the parking lot?

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 =

conduct current i mean it makes sense