Three forces acting on an object are given by F1 = (−1.85î + 6.85ĵ) N, F2 = (4.85î − 2.35ĵ) N, and F3 = (−42.5î) N. The object experiences an acceleration of magnitude 4.00 m/s2.what is the direction of acceleration?

increases it

the answer for apex is the lowest

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 =