What type of friction prevents a pile of rocks from falling apart? a) cohesive friction b) static friction c) rolling friction d) kinetic friction

Formulating a hypothesis: part i since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of " because when writing your hypothesis