Predict the energy transformations when a fast moving roller coaster finishes its ride and comes to a stop.

Now we need some good people on reddit for some time in their thread for me and my family has no interest at the expense to be honest.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

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 =