A_STONE_HAS_INITIAL_POTENTIAL,_KINETIC_AND_INTERNAL_ENERGY_7_J,_10_J_AND_2X_J_RESPECTIVELY,_IF_THE_FINAL_KINETIC_ENERGY,_POTENTIAL_ENERGY_AND_INTERNAL_ENERGY_ARE_5_J,_21_J_AND_X_RESPECTIVELY,_WHAT_IS_THE_FINAL_INTERNAL_ENERGY??$

A_STONE_HAS_INITIAL_POTENTIAL,_KINETIC_AND_INTERNAL_ENERGY_7_J,_10_J_A

1.	A_STONE_HAS_INITIAL_POTENTIAL,_KINETIC_AND_INTERNAL_ENERGY_7_J,_10_J_AND_2X_J_RESPECTIVELY,_IF_THE_FINAL_KINETIC_ENERGY,_POTENTIAL_ENERGY_AND_INTERNAL_ENERGY_ARE_5_J,_21_J_AND_X_RESPECTIVELY,_WHAT_IS_THE_FINAL_INTERNAL_ENERGY??$
A.	2 J
B.	4 J
C.	5 J
D.	9 J
Answer» E.

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