What is the equation for the mechanical advantage of a lever? O MA = length of effort arm + length of resistance arm

O MA = length of effort arm length of resistance arm

O MA = length of effort arm / length of resistance arm

O MA = length of resistance arm length of effort arm​

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above

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 "if…then…because…” when writing your hypothesis.

Phase changes are chemical changes. true or false