Answer: (i) armed forces : Echoes are utilized by the military to acquire brand new gun condition off challenger When your speed regarding sound was 334 ms-1, estimate time in he hears an echo military, geologists, anglers. Answer: t = 0 Radar a tool is employed locate an opponent air-interest ship. (ii) geologists : Echoes are utilized by the geologists getting mineral lead generation. (iii)…