Which of the following situations would produce and average velocity of zero

What can you increase the strength of an electromagnet by

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.

Five renewable energy resources are wind, sunlight, moving water and geothermal energy. question 2 options: true false