Answer:
Blues
Explanation:
Colors of Rainbow => ROYGBIV
Red Orange Yellow Green Blue Indigo Violet
low energy => => => => => => => => => => high energy
low frequency => => => => => => => => => high frequency
long wavelengths => => => => => => => => short wavelengths
Note: All L's on the Left => low, low, long; other end are opposites.
depending on how you change the angle on the ramp the kanetic energy can go up or down depending on how u angle the ramp
please clear ur ques with image
it's unable to be understood
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4 kilograms/liters
