Which of the following represents the answer to the following equation when taking into consideration proper significant digits?
1.0 m/ 0.03 s =
Select one:
O a. 30 m/s
O b. 3 m/s
O c. 33.3 m/s
O d. 33.33 m/s

the bal will not change its velocity.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

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 =