Many scientists believe that the dinosaurs were killed in a large-scale extinction event.
if a large meteor of mass 6.2 × 1010 kg and speed of 2.2 × 104
struck earth at that time, it
would alter the rotational velocity of the planet.
assuming the rotational speed after the meteor struck was (and still is) 1 rev/23.93 hours1
,
how long was a day before the meteor struck?

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

heat the gas and measure the pressure

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 =