Three identical 5.0-kg cubes are placed on a horizontal frictionless surface in contact with one another. The cubes are lined up from left to right and a 25-N force is applied to the left side of the left cube causing all three cubes to accelerate to the right. If the cubes are each subject to a frictional force of 5.0 N, what is the magnitude of the force exerted on the right cube by the middle cube in this case?

Three identical 5.0-kg cubes are placed on a horizontal frictionless surface in contact with one another. The cubes are lined up from left to right and a 25-N force is applied to the left side of the left cube causing all three cubes to accelerate to the right. If the cubes are each subject to a frictional force of 5.0 N, what is the magnitude of the force exerted on the right cube by the middle cube in this case?

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