Answer:
Nubian goat
Explanation:
Hope this helps and have a great day!!!
Answer:
True
Explanation:
A magnetohydrodynamic drive or MHD accelerator is a method which is used for propelling the vehicles using only by applying the electric and magnetic fields. It has no moving parts. It accelerates an electrically conductive propellant (liquid or gas) with magnetohydrodynamics.
Its working principle is same as an electric motor except that in an MHD drive, the moving rotor is replaced by the fluid acting directly as the propellant.
An MHD accelerator is reversible.
So, the statement is true.
If I am at the station that the train is approaching, and if the train is making some kind of steady sound, then as the train draws closer, I hear the amplitude of the sound steadily increasing ... it gets louder and louder as the train gets closer and closer to me.
(The frequency of the sound I hear is higher than the frequency of the sound the train is actually making, but I don't know that, because I have no idea what frequency sound the train is actually making.)
=================================
If anybody tries to tell you that the frequency of the sound from the train keeps getting higher and higher, please tell that person to come see me, and I will straighten him out. It doesn't.
Answer:
Lowest frequency = 537.5 Hz
Third frequency=2687.5 Hz
Explanation:
Given that
Length of pipe ,L= 16 cm
Speed of sound,V = 344 m/s
Also given that it behave like stopped pipe and we know that fundamental frequency for this type of system given as
Now by putting the values
Now second harmonic frequency
Now third harmonic frequency
