When one of the electrons of a particular atom undergoes a transition to a quantum state of lower energy, it: a. collides with another of its electrons
b. exchanges quantum states with another of its electrons
c. undergoes a transition to a quantum state of higher energy
d. emits a photon of light

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

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.

If the new moon happens on january 15th, what shape will it be on february 6th?