A man standing between two cliffs blew a whistle and heard echoes after
2 s and 2.5 s. Calculate the distance
between the cliffs.
s']
[Speed of sound in air = 340 ms

Which of the following is the best name for mgcl2

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.

Ais not a mixture. colloid compound suspension solution