Why are some areas in Europe seeing a partial solar eclipse while others are observing a total solar eclipse?

Which changes of state do the labels represent? a: b: c:

The speed of light can be used to measure the

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.