Transverse waves on a string have wave speed v=8.00 m/s, amplitude a=0.0700m, and direction, and at t=0 the x-0 end of the wavelength -0.320m. the waves travel in the -x string has its maximum upward displacement. a) find the frequency, period and wave number of these waves b) write a wave function describing the wave c) find the transverse displacement of a particle at x=0.360m at time t=0.150 d) how much time must elapse from the instant in part (c) until the particle at x-0.360 m next has maximum upward displacement?

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

answer and explanation;

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 =