Física 1 - Colisões com forças externas - Aula 4.23

New channel Uai Física: title sample judged 'whole' (An overwhelmingly structured physics/math course channel with sequential lectures and worked problems, with only occasio); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.