A dog barks in a park and hears its echo after 0.5 seconds. The sound – McqOptions

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1.	A dog barks in a park and hears its echo after 0.5 seconds. The sound of its bark got reflected by a nearby building. The sound of speed in air is 346 m/s. The distance between the dog and the building is
A.	86.5 m
B.	80.6 m
C.	75 m
D.	8.65 m
Answer» B. 80.6 m

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