tides, tides that are weaker than normal, happen when the Moon is at first or last quarter phase and the sun and moon interfere with each other. A high
B low
C neap
D spring

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

How is the gravitational force related to the distance between two objects?

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories