Really Need Help please worth 50 points Susie pushes a box to the left while Rod is pushing it to the right T force is shown in the image. What is the net force on the box? 25 N 10 N A. 5N
B. 15N
C. 25N
D. 10N

Explanation:

Vector add the two forces

If we assume the forces lie on a unit circle

25cos180 + 10cos0 = -15 or 15cos180 N

The magnitude of -15 = |-15| = 15 N

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 =