Acircular loop of wire of radius 0.50 m is in a uniform magnetic field of 0.30 t. the current in the loop is 2.0 a. what is the magnetic torque when the plane of the loop is perpendicular to the magnetic field? a) 0.59 m-n b) zero c) 0.41 m-n d) 0.52 m n e 0.47 m-n

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