An earthquake measured 4.2 on the Richter scale. Use the formula R=log(A/A0) to determine approximately how many times stronger the wave amplitude A of the earthquake was than A0
A=42A0
A=1,708,020A0
A=15,849A0
A=66,566A0
CAN SOMEONE EXPLAIN HOW TO SOLVE?
2016-06-07 7:23 pm
回答 (4)
2016-06-07 7:39 pm
✔ 最佳答案
An earthquake measured 4.2 on the Richter scale. Use the formula R=log(A/A0) to determine approximately how many times stronger the wave amplitude A of the earthquake was than A0 R = log(A/A₀)
4.2 = log(A/A₀)
(A/A₀) = 10^4.2
A = A₀*10^4.2
A = 15849A₀
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2016-06-07 7:34 pm
R = log (A/A0)
R= 4.2
4.2 = log (A/A0)
10^(4.2) = A/A0
15848.9 = A/A0
So the answer should be the third one.
R= 4.2
4.2 = log (A/A0)
10^(4.2) = A/A0
15848.9 = A/A0
So the answer should be the third one.
2016-06-07 7:39 pm
FUCKFUCKFUCKFUCKFUCK
2016-06-07 7:25 pm
4.2 = log(A / Ao)
10^(4.2) = A / Ao
10^(4.2) * Ao = A
10^(4.2) =>
10^4 * 10^(0.2) =>
10000 * (roughly) 1.5
15000 * Ao
Which one's closest?
10^(4.2) = A / Ao
10^(4.2) * Ao = A
10^(4.2) =>
10^4 * 10^(0.2) =>
10000 * (roughly) 1.5
15000 * Ao
Which one's closest?
收錄日期: 2021-05-01 20:48:32
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