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22 godz. temu · Summary of physics knowledge points in the second volume of the eighth grade of the People's Education Edition Chapter 7 Force 7.1 Force (F) 1, Definition: Note (1) The generation of a force must have a force object and a force object, and there are both ...
22 godz. temu · Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth. The velocity of the galaxies has been determined by their redshift, a shift of the light they emit toward the red end of the visible ...
