Describe what happens when electrical impulses cross muscle fibers

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.

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

The index of refraction of the oil is 1.20. what is the minimum thickness t of the oil slick at that spot?