Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high- many times higher than the wind speed. a typical modern turbine has blades 56 m long that spin at 13 rpm. at the tip of a blade, what are (a) the speed and (b) the centripetal acceleration?

divide the right side by the left side

0.024÷1.2=0.02 for example

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods