cassifiapdahsiej
cassifiapdahsiej cassifiapdahsiej
  • 25-04-2022
  • Physics
contestada

a person standing 100m away from a wall fires a gun and hears and echo. Calculate time after which an echo is heard.
a. 1.02 sec
b. 0.42 sec
c. 2.05 sec
d. 0.61 sec​

Respuesta :

hannjr hannjr
  • 25-04-2022

Answer:

Time for sound  to travel to wall and back

T = S / V = 200 m / (331 m/s) = .60 sec

d) is correct

Answer Link

Otras preguntas

the issue of slavery was largely responsible for the party realignment that followed the election of
a block of mass M is initially at rest on a frictional less floor. the block, attached to a massless spring with spring constant k, is initially at its equilibr
factor the sum of terms as a product of the GCF and a sum: 60+48 what is the ansawer?
why are some elements stable on their own while others are more stable in compounds
what is the unit rate in dollars per hour if u have 3.5 hours equals $10
Michael Jordan has a career average of 30.4 points per game fact or Opinion Explain
Express 15 as a percentage of 60. Please help And also Express 10 as a percentage of 59
Express 15 as a percentage of 60. Please help And also Express 10 as a percentage of 59
What is 405, 000 in Scientific Notation and discuss the advantage of this form.
in what ways were temples important to Egypt's economy ?