Find the power production (in mw) of a 25 m radius wind turbine if the average wind speed is 12 m/s and the efficiency of this turbine in converting kinetic energy of air to mechanical work is 10%? the density of air is 1.20 kg/m3

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

Why does lightning travel from clouds to the ground?