What is my displacement if i walked 200 meters west then turned around and walked 150 meters east

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.

Where should a carbon monoxide detector be mounted?

How does the motion of an airplane compare to the motion of a rocket ?