Brian uses a starter pistol to mark the start of a 100 m sprint. The sound wave produced by the pistol reflects from a nearby wall, and he hears the echo of the
shot 600 ms (milliseconds) after the pistol was fired. Calculate how far the wall
was from Brian. The speed of sound in air is approximately

Multiple choice
330 m/s.
990 m
0 1,980 m
99 m
198 m

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

it was given as a lesson and guide for prayer.