A crate of mass mm starts from rest at the top of a frictionless ramp inclined at an angle αα above the horizontal. Find its speed at the bottom of the ramp, a distance dd from where it started. Do this in two ways.

Which of the following is true of concerts a. concepts prevent us from generalize b. concepts independent of experiences and object. c. concepts complicate the memory process d. concepts provide clues about how to react to a particular object or experience