1. When a force is applied through the free end of spring balance A, both spring balances display the same reading on their scales. This indicates that the force exerted by balance A on balance B is equal in magnitude and opposite in direction to the force from B on A.

    When a force is applied through the free end of spring balance A, both spring balances display the same reading on their scales. This indicates that the force exerted by balance A on balance B is equal in magnitude and opposite in direction to the force from B on A.

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