There were 5 friends dropping rocks aff a bridge into a river. The initial velocity of the rocks is 0m/s, because they are being dropped and therefore begin at rest. Gravity accelerates the 7Kg rocks downward at a rate of 9 m/s. If it takes 8 seconds for the rocks to fall, how high was the cliff?

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.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!