Asubmarine cruising underwater started diving at a rate of 9 meters per minute. after 5 minutes, it was 180 meters below the surface of the water. how long after starting its descent was the submarine 360 meters below the surface?

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.