from his playhouse, a child walks 11 m east, then 7 m north, then 13 m east. what is the direction of the child's displacement from his playhouse?

In what direction does the medium move relative to the direction of the wave? explain.

In a system, when potential energy decreases, then entropy also decreases. true false

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely