Use Newton’s thought experiment on the motion of satellites to solve the following.
1)Calculate the speed that a satellite shot from a cannon must have to orbit Earth 150 km above its surface.(rE = 6.38×106 m)

2)How long, in seconds and minutes, would it take for the satellite to complete one orbit and return to the cannon?

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 =

snell's law

refractve index = sin incidence / sin refraction