brian is at school and wants to walk home . how far and in what direction should he travel? a negative value means the negative x-direction and a positive value means the positive x-direction .

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)