Glen found three brands of earbuds that have the specifications he wants. The three pairs of earbuds looked a bit different from each other, but Glen knew they would perform similarly. Still, each company offered its earbuds at a different price. What economic concept does this situation represent?.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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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.