A train traveling on a straight track moves with a speed of 20 m/s. Brake is applied uniformly and the train comes to a stop with a deceleration of -0.75 m/s^2. What is the time
needed for the train to stop?

the answer is a. hope this .

high-sugar diet and high cholesterol

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 =