During a summer storm, a bolt of lightning is seen. A short time later, thunder is heard. If the lightning struck 12.0 km away, what was the time period between the lightning and thunder? The speed of sound in air is 331.0 m/s at 0.00 °C but the temperature is actually a warm 30.0 °C. Show your work!

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.