Answer:
Diffraction and Interference of light support the wave theory of light.
Explanation:
Complete Question
Which phenomena support only the wave theory of light? Check all that apply.
1.reflection
2.refraction
3.diffraction
4.interference
5.photoelectric effect
Solution
There are two theories/schools of thoughts that light possesses wave and particle properties.
The wave properties of light explain that light is made as a result of interactions of electric and magnetic fields, hence, light is regarded as an electromagnetic wave that propagates without the need for a material medium and moves in a direction perpendicular to the direction of the oscillations or direction of the cause/source of the light waves.
Properties that support the wave properties of light are diffraction (ability to navigate or bend around obstacles) and Interference (two light waves can combine or superimpose to form a single resultant light wave with amplitude greater, lower or equal to the amplitudes of the two constituting light waves).
Hope this Helps!!!
Don't know about the minimum part, but potential energy is calculated using the following formula:

You need to know the planet (or simply the gravity of the planet), the height of the roller coaster car, and the mass of the car.
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Answer
D. move a small magnet back and forth within a section of the coiled wire.
Explanation:
i put that for the test and i got it right
I'm sure it's Centripetal force
Answer:
Angle of incidence ray
Explanation:
The way light reflects off a smooth surface is described by the law of reflection. This law states that the angle of reflection equals the ANGLE OF INCIDENCE RAY.
This is because, when light is reflected off a smooth surface, the light is reflected by all the points that is present on that smooth surface.
Therefore the speed at which the light rays falls on the smooth surface is the same as the speed at which the light ray is reflected back. Due to their speed been the same, the distance of the incidence ray would also be the same as the distance of the reflected ray.
Hence the angle of incidence = angle of reflection.