A boy yells in a narrow valley. The sound reflects off of a boulder that is 80 m away. How long will it take to hear the echo if the speed of a sound wave is 320 m/s?(speed = )

Question

Revolt · Accepted Answer

0.50 seconds for the sound to travel to the boulder and return as an echo

Unit Test — Unit test

A boy yells in a narrow valley. The sound reflects off of a boulder that is 80 m away. How long will it take to hear the echo if the speed of a sound wave is 320 m/s?(speed = )

More from this Course