The bicyclist applies the brakes as he descends the 19° incline. what deceleration a (enter a positive number) would cause the dangerous condition of tipping about the front wheel a? the combined center of mass of the rider and bicycle is at g.

atomic = no of protons.

mass number-atomic number = neutron number

+15-35=-20

going in opposite directions

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 =