Which statement best defines why sound waves are mechanical waves?
A.They require a medium in which to travel.
B.They can travel through a vaccum.
C.They can travel only through solids.
D.They can travel through gases.

Question

Which statement best defines why sound waves are mechanical waves?
A.They require a medium in which to travel.
B.They can travel through a vaccum.
C.They can travel only through solids.
D.They can travel through gases.

anonymous · Answer

A.They require a medium in which to travel.

anonymous · Answer

Are you positive?

anonymous · Answer

yup

anonymous · Answer

If the frequency of a sound wave is 250 hertz and its wavelength is 1.36 meters, what is the wave's velocity?

anonymous · Answer

frequency=1/Time wavelength=1.36m is distance travelled now you might get velocity. . .

anonymous · Answer

How do you solve it?

anonymous · Answer

you have distance you have time =1/frequecy distance over time is speed. . .

anonymous · Answer

So its 1/250

anonymous · Answer

$$v=\nu \times \omega $$
where nu is frequency and w is wavelenght

anonymous · Answer

huh?

anonymous · Answer

just multiply frequesncy with wavelength and you have the answer

anonymous · Answer

whats the frequency and wavelength

anonymous · Answer

If the frequency of a sound wave is "250 hert"z and its wavelength is "1.36 meters", what is the wave's velocity?

multip[ly them. . .  :P :|

anonymous · Answer

340??

anonymous · Answer

yup

anonymous · Answer

thank you!!

anonymous · Answer

What is the speed of sound at a temperature 
of 56°C?

anonymous · Answer

speed of sound doesnt depend upon temperature. . .

anonymous · Answer

Its 365 meters/second

anonymous · Answer

http://www.sengpielaudio.com/calculator-speedsound.htm

anonymous · Answer

oh thanx a new thing :P