Consider a compact car that is being driven at 86 km/h.
The acceleration of gravity is 9.8 m/s2
From what height would the car have to be
dropped to have the same kinetic energy?
Answer in units of m.

the independent variable, or the one that is intentionally manipulated is the speed.

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 =