8: As a grade-school project, students construct a mobile representing some of the major food groups. Their completed artwork is shown below. Find the masses mi, m2, and m3 that are required for a
perfectly balanced mobile.

Which of the following are appropriate acceleration units?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe