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Dora rolled a marble down a ramp in recorded the potential energy and kinetic energy of the marble at different positions on the ramp as shown in the table below which is the constant variable in this
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Dora rolled a marble down a ramp in recorded the potential energy and kinetic energy of the marble at different positions on the ramp as shown in the table below which is the constant variable in this experiment

User Sunomad
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Answer:

The mass of the marble

User Dblood
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The constant variable is kinetic energy because of it being in motion constantly.
User Fadhly Permata
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