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____ [38]
3 years ago
6

(UPE) Terremotos são eventos naturais que não têm relação com eventos climáticos extremos, mas podem ter consequências ambientai

s devastadoras, especialmente quando seu epicentro ocorre no mar, provocando tsunamis. Uma das expressões para se calcular a violência de um terremoto na escala Richter é onde M é a magnitude do terremoto, E é a energia liberada (em joules) e E0 = 104,5 joules é a energia liberada por um pequeno terremoto usado como referência. Qual foi a ordem de grandeza da energia liberada pelo terremoto do Japão de 11 de março de 2011, que atingiu magnitude 9 na escala Richter?
Mathematics
1 answer:
Alex3 years ago
6 0

Answer:

E=10^{18} Joules

Step-by-step explanation:

1) Olá! Adicionando dados faltantes ao enunciado, como a fórmula dada: M=\frac{2}{3}log(\frac{E}{E_{0}})\\ e corrigindo a quantidade de Energia inicial: 10^{4,5} Vamos seguir aplicando a fórmula, lembrando das propriedades de logaritmo.

M=\frac{2}{3}log(\frac{E}{E_{0}})\\9=\frac{2}{3}log(\frac{E}{10^{4,5}})*3\\27=2log(\frac{E}{10^{4.5}})\\log(\frac{E}{10^{4.5}})^{2}=27\\(\frac{E^{2}}{10^{9}})=10^{27}\\E^{2}=10^{27}*10^{9}\Rightarrow E=\sqrt{10^{36}}\rightarrow E=10^{18} Joules

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lesantik [10]

Answer:

261

Step-by-step explanation:

I took each number and divided each of them by 9 until I got a whole number with no decimals.

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3 years ago
What is 46,290 in scientific notation?
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Answer:

Step-by-step explanation:

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The greatest factor that two or more numbers have in common is the
trapecia [35]

Answer:

 "greatest common factor" (GCF) or "greatest common divisor" (GCD)

Step-by-step explanation:

Apparently, you're looking for the term that has the given definition. It is called the GCF or GCD, the "greatest common factor" or the "greatest common divisor."

_____

The GCF or GCD can be found a couple of ways. One way is to find the prime factors of the numbers involved, then identify the lowest power of each of the unique prime factors that are common to all numbers. The product of those numbers is the GCF.

<u>Example</u>:

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The unique factors are 2 and 3. Only the factor 3 is common to both numbers, and its lowest power is 1. Thus ...

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Another way to find the GCD is to use Euclid's Algorithm. At each step of the algorithm, the largest number modulo the smallest number is found. If that is not zero, the largest number is replaced by the result, and the process repeated. If the result is zero, the smallest number is the GCD.

  GCD(6, 9) = 9 mod 6 = 3 . . . . . (6 mod 3 = 0, so 3 is the GCD)

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Step-by-step explanation:

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