Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


Given Frequency v=2 k hz= 2*10³hz,
Speed of sound=frequency*wavelength
That is u = v*wavelength=(2*10³hz)*((0.40)
=0.80*10 Hz=800m-1
That is t= s/v
Given distance ,=1.6 km=1.6*10³m²
Therefore, time=1.6*10³m/800m-1 = 1600/800 seconds= 2 seconds

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts