A school bus, starting from campus, moves 10 meters north, stops at an intersection, and then turns east traveling for another 10 meters. What is the displacement of the school bus?
o 14 m, northeast
o 14 m northwest
o 20 m, northeast
o 20 m, northwest

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.