To solve this problem it is necessary to apply the concepts related to wavelength as a function of speed and frequency. In mathematical terms it can be expressed as
Where,
v = Velocity
f = Frequency
According to our values the frequency (f) is 320Hz and the speed (v) is 339m / s.
Replacing in the given equation we have to,
Therefore the wavelength of this sound wave is 1.06m
Answer:
45°.
It is a property of the parabolas.. When the angle between a parabola and the x-axis is 45° the range is maximum.
Answer:
Sound Waves only needs a medium which in this case is Air,not withstanding the wall demarcation.
Explanation:
Sounds Waves can't be seen,they are Invisible.Anytime a person talks the produce vibration,and anytime you see vibration you are definitely seeing sounds.
You hearing your friend talk to you from the other compartment is made possible because their is a medium which in this case is Air.
Sound waves can travel in other medium apart from Air,Such Medium Includes Water and solids.
Air is invisible and when you talk you are sending sound waves into the air which in turn causes vibration which in this case you don't see but you can hear provided its of a reasonable pitch.
The law of conservation of energy is:
-- Energy can't be created or destroyed.
-- Energy can't just appear out of nowhere. If you suddenly have
more energy, then the 'extra' energy had to come from somewhere.
-- Energy can't just disappear. If you suddenly have less energy,
then the 'missing' energy had to go somewhere.
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There are also conservation laws for mass and electric charge.
They say exactly the same thing. Just write 'mass' or 'charge'
in the sentences up above, in place of the word 'energy'.
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And now I can tell you that the conservation laws for energy and mass
are actually one single law ... the conservation of mass/energy. That's
because we discovered about 100 years ago that mass can convert
into energy, and energy can convert into mass, and it's the total of BOTH
of them that gets conserved (can't be created or destroyed).
How much mass makes how much energy ?
The answer is E = m c² .
Would eventually stop when it doesn't have anymore potential energy
