yes they surely are girl.
false
The Doppler effect occurs whether the sound source or the listener is moving. You wont notice the Doppler effect on a slow moving train because the radio wave is reflected, its frequency changes depending on the speed of the object.
mollusks are slow-moving in the way that they are soft-bodied animals and protected by shells.
Sound in oxygen is slow moving, but sound in space is not possible(by space, I mean a vacuum)
The sound travel faster in warm air because the average mean speed of the molecules of air is faster in warm air than on cool air. Sound is transferred by collisions of molecules. Therefore sound waves will travel faster on warm air because collisions of molecules of air in warm air is greater.
Short-wavelength sound waves, such as those with high frequencies, produce a high pitch. When an object vibrates quickly, it generates fast compressions and rarefactions in the air, resulting in a high-frequency sound wave that our ears perceive as a high pitch.
Look in marshy areas or shallow slow moving water at the riverside
Because sins sound waves aren't in the air then when sound waves get to the air there's nothing to slow it down so it bonuses back fast
Density affects pitch because it affects the speed of sound waves. In denser materials, sound waves travel faster, resulting in a higher pitch. Less dense materials slow down sound waves, leading to a lower pitch.
Peristalsis.
Vibration is the motion or effect of fast or slow moving particles creating specific movements regarding to how fast, how slow, how big, or how small the object is or was.
Electromagnetic waves always travel at whatever the speed of light is in the material they're traveling through. That's the highest possible speed for anything moving in that particular material, so it can't be called "slow".