Because they are unconstrained.
That is, the ripples on the water surface are constrained to be on the surface of the water by their very nature: that is, a ripple is by definition a disturbance on the surface of the water.
Since the surface of the water is flat, then the ripples cannot be spherical and they must instead assume the 2D intersection of the sphere which is commonly known as a "circle. "
In fact, "sound" waves can travel through water and these are distinct from ripples. Like their airborne counterparts, subsurface sound waves also propagate spherically -- they travel in 3 dimensions because they can and they are not constrained by anything to propagate in merely 2 D.
An example of an induction charging of two metal spheres. The metal spheres are supported by insulating stands so that any charge acquired by the spheres cannot travel to the ground. The spheres are placed side by side (see diagram i. below) so as to form a two-sphere system. Being made of metal (a conductor), electrons are free to move between the spheres - from sphere A to sphere B and vice versa.
The same circles will form and travel downstream
Interesting question... Answer: Yes. A Sound wave is just the propagation of a pressure wave. Just as a ripple can travel on the surface of a river, so can sound travel through wind. It will be subject to the Doppler effect (the change in pitch due to relative motion of observer and source) and also to the turbulence of the wind.
Anything up to 10 miles, zero if driven in circles.
No, sperm use a small whip-like tail to travel through a liquid medium. Also not just any liquid medium, it must be rather viscous for optimal travel, like that found in semen. The tail would be useless in air.
Because otherwise we wouldn't hear the sound if we were above or below the source of the sound. Only if we were at the exactsame height.It heads out in every direction possible.Because we live in a 3 spacial dimensional universe, it would be a circle in a 2D universe.
Phosphorus does not travel through the atmosphere.
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Circles
the planets go around in circles around the sun
An example of an induction charging of two metal spheres. The metal spheres are supported by insulating stands so that any charge acquired by the spheres cannot travel to the ground. The spheres are placed side by side (see diagram i. below) so as to form a two-sphere system. Being made of metal (a conductor), electrons are free to move between the spheres - from sphere A to sphere B and vice versa.
Different environments are encountered. It involves all spheres of biosphere.
The same circles will form and travel downstream
The same circles will form and travel downstream
travel
Interesting question... Answer: Yes. A Sound wave is just the propagation of a pressure wave. Just as a ripple can travel on the surface of a river, so can sound travel through wind. It will be subject to the Doppler effect (the change in pitch due to relative motion of observer and source) and also to the turbulence of the wind.
I don't know gravitational pull like how the moon is in orbit and circles the earth I guess