{"title":"Questão 66 - ENEM 2016","index":66,"discipline":"ciencias-natureza","language":null,"year":2016,"context":"![](https://enem.dev/2016/questions/66/37f431da-a3ba-4a66-ac4b-c33f6d37730c.png)\n\n![](https://enem.dev/2016/questions/66/9e38e644-e6b4-4128-9e76-a44227a87238.png)","files":["https://enem.dev/2016/questions/66/37f431da-a3ba-4a66-ac4b-c33f6d37730c.png","https://enem.dev/2016/questions/66/9e38e644-e6b4-4128-9e76-a44227a87238.png"],"correctAlternative":"B","alternativesIntroduction":"A frequência de giro do ponteiro, em RPM, é","alternatives":[{"letter":"A","text":"1.","file":null,"isCorrect":false},{"letter":"B","text":"2.","file":null,"isCorrect":true},{"letter":"C","text":"4.","file":null,"isCorrect":false},{"letter":"D","text":"81.","file":null,"isCorrect":false},{"letter":"E","text":"162.","file":null,"isCorrect":false}]}