Solar power: in this problem you will provide back-of-the envelop calculations for a small solar generator. the problem relies on your ability to calculate things like p iv, area, etc. 4. estimate how much power could be generated by the solar panel if it worked with maximum efficiency. (this is a general physics style calculation). estimate how much power is actually used in the rotation of the propeller blades photo-cells are often based on the cds semi-conductor device. explain how a cds solar cell works. how might the cds solar cell be responsible for the entire loss of energy in this system?

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

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 =