Difficult to tell since there is nothing following. My guess is concentric, but that does not require the circles to be coplanar.
The word they have in common is "round." A table can be round, a dog can run in circles, and spinning refers to a circular motion.
Concentric relates to circles or spheres with a common center, while conglomerate refers to a group of diverse or disparate elements that are combined together. In a geological context, a concentric structure has layers arranged around a center, while a conglomerate rock consists of various different types of rock fragments bound together.
The term heritage center is a common noun unless you are referring to a specific heritage center such as The Italian American Heritage Center or The American West Heritage Center, for example.
Two points are collinear if there is a line going through them. A higher-dimensional counterpart to this is "coplanar": objects are coplanar if there is a plane that contains the objects. There's always a plane containing any three points, so you'd need at least four points (in at least three dimensions) for this distinction to be meaningful. However, it's also possible to discuss two or more coplanar lines, for example - if two lines are not coplanar, they are called skew. To visualize this, imagine a bridge crossing a river: the bridge and the river could be extended into lines that are not contained in any common plane. Beyond coplanar objects, it's possible to discuss "cospatial" objects that lie in the same three-dimensional space. However, you'd need at least four dimensions to even talk about this, since in three dimensions everything is cospatial, in a way. Another related concept to collinear is "concurrent." This refers to three or more lines (or circles) that all intersect at the same point.
In the Heliocentric model, the SUN is in the center. The word 'Helio' refers to SUN. 'Centric' refers to center. So its ' SUN-Center.
In medical circles, WHO often refers to the World Health Organization.
Assuming the 300 mm refers to the diameter, there are 9.
Pitch
If the question refers to Olympic symbol - then each circle represents each of the five continents
True. Circular motion refers to any motion along a curved path, not just complete circles. This includes arcs, curves, and segments of circles.
Yes, circular motion refers to any motion along a curved path with a constant radius. This can include partial circles, ellipses, or any other curve with a consistent radius of curvature. It is a common type of motion in physics that involves a continuous change in direction.
The Center For The Arts refers to many locations but likely refers to the arts program center located in Eagle Rock, Los Angeles. The center provides assistance in bettering people, especially children, in art.