In the event your rate out of sound is actually 334 ms-step step 1, calculate time in he hears a mirror
- army,
- geologists,
- fishermen.
Answer: t = 0
Radar a device is used to get an enemy air-pastime ship. (ii) geologists : Echoes are utilized of the geologists getting mineral to generate leads. (iii) fishermen : for locating fishes ultrasonic surf try delivered on the liquid.