Which of the following statements is true of introspection as a method of study?
O It focuses on uncovering unconscious thoughts.
O It relies entirely on a person's conscious reflection.
O It focuses on the purposes of the mind in an individual's adaptation to the
environment.
It focuses on judging what is going on in a person's mind based on his or her behavior.

If a balloon is taken outside on a very cold day, what will occur?

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm