QUESTION 1 Millikan and Harvey set out to measure- A. the diameter of oil droplets under an electric force.
B. the value of the elementary charge.
C. the force of gravity on oil.
D. O the viscosity of air at various temperatures.

(its a multiple choice, but only ones right.)

not moving. pos accel,

i think its c if i'm wrong

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

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 =