Two loudspeakers are separated by 3 m and are both playing a 686 Hz tone in phase. When you are 5.62 m directly in front of one of the speakers do you hear a minimum or a maximum sound intensity?

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