According to Piaget's theory, when Baby Sasha sucks her thumb, she is demonstrating a __________ circular reaction

Find the magnitudes and phases of these complex quantities.

(a) e?(3+j2.3) (b) e2?j6 (c)

Marilynn is ready to learn how to play catch. Which of the following is the model from whom Marilynn would learn best?

A) her mother B) her father C) her friend D) her teacher