Hikers went on a five mile hike which they started at 1 pm and stopped at 3 pm they ended up 300 meters south of the trail head where they started. what was the hikers velocity?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

The law of reflection states that the angle of reflection is equal to the angle of

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.