You see a system consisting of a mass oscillating on the ena or a sprmg pass period of the system is t. your strange friend, who is moving with the mass-spring system, also measures its period and finds a period that is a) d) e) b) either a or b depending on whether the system was there is not sufficient information to answer the question. less than t c) greater than t equal to t approaching or receding from the first observer. a atondard canadian foothall field is 100 m long and 60

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 =

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.