Connect Your Understanding 5. A metre stick is used as a lever. If the
input force is applied at 0 cm and the
output force is exerted at 100 cm, what is
the ideal mechanical advantage if the
fulcrum is at 75 cm?

no. dot product   =0 when vecs at right angles

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

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 =