Which equation correctly relates mechanical energy, thermal energy, and total energy when friction is present? A. [tex]E_{total}[/tex] = ME + [tex]E_{thermal}[/tex] B. [tex]E_{total}[/tex] = ME - [tex]E_{thermal}[/tex] C. [tex]E_{total}[/tex] = [tex]E_{thermal}[/tex] - ME D. [tex]E_{total}[/tex] = ME × [tex]E_{thermal}[/tex]