Physics, 15.08.2020 20:01, coolkitty35

The kinetic energy of a Li^++ ion that has accelerated from rest through a potential difference of 5800 V. Express your answer to two significant figures and include the appropriate units. The potential energy of two protons 8.0 fm apart. Express your answer to two significant figures and include the appropriate units.
The kinetic energy, just before impact, of a 220 g ball dropped from a height of 1.2 m. Express your answer to two significant figures and include the appropriate units.

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The kinetic energy of a Li^++ ion that has accelerated from rest through a potential difference of 5...