5) Todas as afirmativas a seguir se tratam de opiniões, exceto: * 10 pontos a) "...A pessoa certa ─ é aquela que vai entender todas as suas manias " b) "A pessoa certa pra você é a errada." c) "A fissura por previsões astrológicas era meio exagerada" d) "Algumas frases se propagam sem que saibamos quem é o verdadeiro autor."

The different layers of gases that extend form the surface of the earth into space

What does the first stage of a multistage rocket do?

Ateacher attaches a ball to a meter long string and whirls it around in a horizontal circle at constant speed. the teacher explains that the string is what makes the ball go in a circle. why is the string necessary? a) the string is needed to apply a torque to the ball. b) the string is needed to push on the ball to get it up to speed. c) circle motion requires an inertia which is provided by the string. d) circle motion requires a force to give it a centripetal acceleratio