2.when sugar or another substance is dissolved in water, it disappears from view and forms a homogeneous mixture with the water, also called a solution. if you can’t see the sugar, how can you tell that it is there?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency

Why do atoms emit energy of only specific wavelengths