The diagram below shows a cross section of a tectonic plate boundary. Which terms BEST describe features 1, 2, and 3?
O
1 - continental crust, 2-mantle, 3 - oceanic crust
0
1-mantle, 2 - oceanic crust, 3-continental crust
O
1 - oceanic crust, 2-mantle, 3-continental crust
1 - continental crust, 2 - oceanic crust, 3-mantle
Rack

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Need only answer if you think you know it

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=