Difference between express powers and explicit powers?

Answer 1

Do you mean expressed powers and implied powers? Expressed powers are explicit in the Constitution meaning that they are written down in the section outlining the powers of Congress, the President and the Judicial Branch. Implied powers are powers that are implied in the Constitution. For example, the Constitution makes no mention of regulating radio waves (since there was no radio when the Constitution was written) but since they have the power to regulate commerce between states, if you consider radio waves going over state lines, then they also have the power to regulate radio waves. Also, radio is a business so it is commerce. This helps our Constitution be flexible and still used today.