In the 1860s a scientist named an arrangement of elements that formed the basis for what we know today as the periodic table of elements

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.