Earths tectonic plates move in response to convection

After an atomic bomb has been dropped, the damage continues to get worse. why is this?

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

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