A hand-pumped water gun is held level at a height of 0.78 m above the ground and fired. The water stream from the gun hits the ground a horizontal distance of 6.6 m from the muzzle. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired. Assume that the speed of the water in the reservoir is zero, and that the water flow is steady. Ignore both air resistance and the height difference between the reservoir and the muzzle.

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 =

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.

conduct current i mean it makes sense