A ball is dropped off the side of a bridge,
After 1.55 S, how far has it fallen?
(Unit=m)

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.

Which of these is the best way to manage a natural resource