Which ray diagram demonstrates the phenomenon of absorption? An illustration with a vector pointed right going through an opening in a boundary and splitting into 3 vectors. One up and to the right, one straight and one down to the right.

An illustration with a vector pointed right going through an opening in a boundary and turning into a transverse wave on the other side.

An illustration with a vector striking a boundary at an angle and a second vector coming off the boundary at the exact same angle.

Wish i knew this to !

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

If your workout exceeds an hour you should substitute "a sports drink" for water.hope my answer has you : )