1. Sebuah gelombang berjalan dengan persamaan y. 0.03 S 21 (t + 2x) dengan xdan y dalam meter dan 1 dalam sekon
tentukan
a. arah rambat dan amplitudo gelombang
b. Frekuensi dan periode gelombang
C . Panjang gelombang
d. cepat rambat gelombang
e. Sudut Fase saat X - Im dan + detik
f. Beda Fase untuk 0.25 in
X = 0,25​

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 =