Which of the following is an example of Newtons second law of motion? (2 points) Caties skateboard hits a curb and she falls forward onto the grass. A tissue and a rock are dropped from a ladder. The rock exerts a greater force when it hits the ground. A person stands on a chair and pushes down, and the chair pushes upwards on the person. Tires from a bike push against the road, and the road pushes back.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

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 =

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y