A 70kg student is climbing a rock face with a constant speed. Neglect any friction and drag Impeding her motion. - How many forces are acting on the student?

- Are all forces on the student balanced?

- What is the magnitude of the net force on the student?

- How much force is the student generating up the hill?

- What is the magnitude of the normal force?

d is the correct answer

b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

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