Imagine looking at a coil of wire that was on your desk, wrapped around the circular frame of a clock. There are "N" turns and the area of the coil is A. The Earth's magnetic field, B, travels downward through the coil. In a fit of anger you decide to squish the coil to smithereens. In doing so you changed the area through which the field was traveling. What current would result, and in what direction?

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 (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to