ULtra SOUND PLSSS TELL ME NE ONE

[sadman]

In the relected pulse thingy
would it be after 2 blocks after da C one or more dan R????

 

[Syed Ali]

It will be after R.

 

[sadman]

sure man?
can u xplain?

 

[xcalibur]

Yeah I got this one wrong tho :[
The Amplitude will be higher, due to the hole less energy would be absorbed by the metal.
The wave would be after R because sound waves travel faster in solids, thus with the hole there it would take a longer time to return.
I got the amplitude one right but drew it before R... I think I'll get 1 mark :/

 

[sadman]

dude amplituude shud be same as are
but yes i think dey shud accept dat

 

[Syed Ali]

This is the best I can explain

 

[shahoo]

This is the best I can explain

nice

 

[sadman]

r u sure!!!
bcs some of my frnds sed since it was half it wud 2 div after S
which made no sense to me
btw dey r da geuniuses in ma school
nd always get highest!

 

[Axa saleem]

r u sure!!!
bcs some of my frnds sed since it was half it wud 2 div after S
which made no sense to me
btw dey r da geuniuses in ma school
nd always get highest!

but first of all they are humans, lol, and committing mistakes is a part of human nature, so chill out!

 

[xcalibur]

As for the energy part.. I wrote that 1- Some sound energy is converted into kinetic energy by colliding with air molecules and
2- Some sound energy is absorbed by the metal.
Is that correct?

 

[Syed Ali]

As for the energy part.. I wrote that 1- Some sound energy is converted into kinetic energy by colliding with air molecules and
2- Some sound energy is absorbed by the metal.
Is that correct?

I wrote exactly the same and its correct