Suppose you push harder so that P increases to 220 N and the box just begins to move. Based on this result, what is the STATIC coefficient of friction for the box

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

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 =