Atrain left a station at noon, travelling at 40 mph. a second train left at the station at 3 pm traveling at 60 mph. at what time will the second train catch up with the first

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.

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created