A hockey pucks average velocity is 22m/s off of a NHL player's stick. How long does the puck slide across the ice if it travels 132m?

Explanation:

s=vt

v=22 m/s

s=132 m

s=vt

t=s/v

t=132/22

t=6 s

Explanation:

distance travel = 132 m

velocity = 22 m/s

find time

solution:

time = distance / velocity

       = 132 m

          22 m/s

       = 6 sec.

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 =