Two football players have a head-on collision and grab onto each other’s uniforms. The 80 kg Texan was moving at 5 m/s, while the 90 kg Cowboys player was moving in the opposite direction at 3 m/s. What is their final velocity after impact? using inelastic formula.

the largest known star in the universe is uy scuti, a hypergiant with a radius around 1,700 times larger than the

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 =