Alarge ant is standing on the middle of acircus tightrope that is stretched with tension t_s. the rope has mass per unit length mu. wanting to shake the ant off the rope, a tightropewalker moves her foot up and down near the end of the tightrope, generating a sinusoidal transverse wave of wavelength lambda and amplitude a. assume that the magnitude of the acceleration due to gravity isg. what is the minimum waveamplitude a_min such that the ant will become momentarily weightless atsome point as the wave passes underneath it? assume that the massof the ant is too small to have any effect on the wavepropagation. express the minimum wave amplitude interms of t_s, mu, lambda, and g.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

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 =