Physics, 12.07.2019 11:00 parkermacyow71bm
Atruck moves 60 kilometers east from point a to point b. at point b, it turns back west and stops 15 kilometers away from point a. what are the total distance and total displacement of the truck? a. the total distance is 105 kilometers, and the total displacement is 15 kilometers east. b. the total distance is 105 kilometers, and the total displacement is 45 kilometers east. c. the total distance is 60 kilometers, and the total displacement is 60 kilometers east. d. the total distance is 60 kilometers, and the total displacement is 45 kilometers east. e. the total distance is 105 kilometers, and the total displacement is 75 kilometers east.
Answers: 1
Physics, 22.06.2019 09:00
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 11:30
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
Atruck moves 60 kilometers east from point a to point b. at point b, it turns back west and stops 15...
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