Need help please
luhat ane the cxaressans altor PE hl fac kE andl f total E...
luhat ane the cxaressans altor PE hl fac kE andl f total E fesa mass on a sprna lhese shauld be Luniten in terms of pasthenispcch and anv canstanth uhen thert are na otber focas expcned u the System 4what dees the principle of cns eneray toll us about the SAM KE+PE? 2