Consider the two-slit experiment. Light strikes two slits that are a distance 0.0236 mm apart. The path to the third-order bright fringe on the screen forms an angle of 2.09° with the horizontal. What is the wavelength of the light?

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

gravity

explanation:

an electric circuit

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 =