Final answer:
The question seeks to calculate the electric force between two charged objects using Coulomb's Law. The calculation involves the charges of the objects and the distance between them to find the magnitude of the force.
Step-by-step explanation:
The question deals with the concept of electric force between two charged objects, as explained by Coulomb's Law. The electric force can be calculated using the equation F = k |q1 * q2| / r^2, where F is the force between the charges, k is Coulomb's constant (8.99 x 10^9 N*m^2/C^2), q1 and q2 are the amounts of the charges, and r is the distance between the charges. Since Object A has a charge of +16 nC (1 nC = 1 x 10^-9 C) and Object B has a charge of -30 nC, and they are separated by a distance of 2.0 cm (1 cm = 0.01 m), we can substitute these values into the equation to find the magnitude of the electric force on Object A.