Physics, 21.02.2020 01:40 mcalepcrager

The popular GPS devices that people use to find directions while driving use which type of satellite system?

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Answer from: chem1014

The popular GPS devices that people use to find directions while driving use "Global Navigation Satellite System (GNSS)".

Explanation:

The umbrella term for all global satellite tracking systems is GNSS i.e Global Satellite Navigation System. This involves satellite constellations circulating over the surface of the earth and continuous signal transmission that allow users to evaluate their location.

A satellite array of 18–30 medium Earth Orbit (MEO) satellites distributed across several orbital planes typically achieves greater coverage for each network. The specific systems differ, but use > 50 ° orbital inclinations and approximately twelve hours orbital cycles.

Answer from: cynayapartlow88

GNSS(Global Navigation Satellite system) is used in GPS that are employed to find directions while driving.

Explanation:

"Global Navigation Satellite System" (GNSS) relates to a group of satellites giving communication from space that broadcasts "positioning and timing data" to the system receivers. This system includes a variety of satellites that utilize microwave signals that are broadcasted to GPS to give data on position, vehicle velocity, time and direction. So, a GPS navigating and tracking system can provide both real-time and important exploration data on any sort of journey. GNSS is also known as Augmentation systems.

Answer from: Quest

scientific laws are the result of testing theories and proving them to be facts.

Answer from: Quest

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 $= 2\%\hspace{1mm}of \hspace{1mm} 70\hspace{1mm} kg=\frac {2}{100}\times 70 =1.4\hspace{1mm} kg$

therefore, 100 trillion micro-organisms would weigh:

$\rightarrow 100\times1.4 kg = 140 kg$

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 = $\frac{1.4 kg}{10^12}=1.4\times10^{-12} kg$

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