How to write an equation of a line perpendicular to

Ответ:

yfnal3x

17.06.2021

The intensity was $5.02377\times 10^{18}$

Step-by-step explanation:

We are given

An earthquake registered 7.4 on the Richter scale

so, RC=7.4

the reference intensity of this quake was 2.0 × 10^11

so,

$I_r=2.0\times 10^{11}$

now, we can use formula

$RS=log(\frac{I}{I_r} )$

now, we can plug values

$7.4=log(\frac{I}{2.0\times 10^{11}} )$

now, we can solve for I

$10^{7.4}=\frac{I}{2.0\times 10^{11}}$

$I=10^{7.4}\times 2.0\times 10^{11}$

$I=5.02377\times 10^{18}$

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