An ice skater initially spins 10 times in 5.0 seconds while her arms are extended out. In this position, her moment of inertia is 6.4 kg. m2 . While spinning at the initial rate given, she pulls her arms in. As a result her new moment of inertia is 6.0 kg. m2 . What is her final angular speed

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

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 =