A 1.83 m-long aluminum "singing" rod is held in the center by one hand and is stroked along the direction
of the rod by the other. The Young's modulus for Al is
7.00 × 1010 N/m7 and the diameter of the rod is 1.27
cm. If the rod is subjected to a force of 10.5 N, what
is the tensile stress on the rod?

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