How is the acceleration of an object in uniform circular motion constant? OA in magnitude only OB. in direction only OC. in both magnitude and direction OD. in magnitude, direction, and orlentation​

the force on the thing and the distance the force moves the thing

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.