Question

9. An observer sitting in line of two tanks, watches the
flashes of two tanks firing at each other at the same time,
but he hears the sounds of two shots 2 s and 3.5 s after
seeing the flashes. If distance between the two tanks is
510 m, find the speed of sound. Ans. 340 ms
10. How long will sound take to travel in (a) an iron
rail and (b) air, both 3.3 km in length ? Take speed
of sound in air to be 330 m s- and in iron to be
5780 m ms
fal 1.625
chi​

Answer 1

Answer:

thx darling

but why r u giving me so many thanks ?