Solve the Problem $R = \log \left( \frac { \mathrm { a } } { \mathrm { T } } \right) + \mathrm { B }$

question 62

Multiple Choice

Solve the problem.
-Use the formula $R = \log \left( \frac { \mathrm { a } } { \mathrm { T } } \right) + \mathrm { B }$ to find the intensity $\mathrm { R }$ on the Richter scale, given that amplitude a is 444 micrometers, time T between waves is 3 seconds, and B is 3 . Round answer to one decimal place.

• A) \(2.2\)
• B) 8
• C) \(8.5\)
• D) \(5.2\)