Solve.
-Use the formula $R = \log \left( \frac { a } { T } \right) + B$ to find the intensity $R$ on the Richter scale, given that amplitude $a$ is 426 micrometers, time T between waves is $3.3$ seconds, and B is 2.1. Round answer to one decimal place.
A) $2.1$
B) $7.2$
C) $4.2$
D) 7

Question

Quizplus · Accepted Answer

To find $R$, substitute the given values into the formula: $R = \log \left( \frac{426}{3.3} \right) + 2.1$. Calculate $\frac{426}{3.3} \approx 129.09$, then $\log(129.09) \approx 2.11$. Finally, $R = 2.11 + 2.1 = 4.21$, which rounds to 4.2.

Solve -Use the Formula R=log⁡(aT)+BR = \log \left( \frac { a } { T } \right) + BR=log(Ta​)+B

Solve
-Use the Formula $R = \log \left( \frac { a } { T } \right) + B$