A 0.683 kg object is suspended from the ceiling at the end of a 2.31 m string. When pulled to the side and released, it has a speed of 3.44 m/s at the lowest point of its path. What maximum angle does the string make with the vertical as the object swings up

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.