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The Richter scale measures the strength of earthquakes. It makes use of measurem...

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The Richter scale measures the strength of earthquakes. It makes use of measurements of the amplitude of the vibrations by seismographs. However, for each seismographic measurement the distance from the seismograph to the epicentre of the earthquake has to be taken into account. The equations that are used to calculate the Richter magnitude of an earthquake differ in different geological locations, but a well-known equation, known as Lillie's equation, is: where is the seismographic measurement in micrometers and is the distance from the epicentre in units of 100 km.

When this equation is converted to the form what is the correct expression for ?

Die Richter skaal is 'n maatstaf van die sterkte van aardbewings. Dit maak gebruik van die meting van die amplitude van die vibrasies deur seismograwe. Vir elke seismografiese meting moet die afstand tussen die seismograaf en die middelpunt van die aardbewing egter in ag geneem word. Die vergelykings wat gebruik word om die  Richterskaal grootte van 'n aardbewing te bereken verskil in verskillende geologiese gebiede, maar 'n bekende vergelyking, wat Lillie se vergelyking genoem word, is: waar die seismografiese meting in mikrometers is en die afstand van die middelpunt in eenhede van 100 km.

Wanneer hierdie vergelyking omgeskakel word na die vorm wat is dan die korrekte uitdrukking vir ?

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