1. moby then goes up the other side of the half pipe and stops. if that trip also took five seconds, what was mobys acceleration?

in physics zero. in muscle fatigue could be high

cant without the picture! ?

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 =