I'd say "d" considering all of the other options are very negative.
I believe the answer is: <span>The U.S. expanded its air force and its buildup of nuclear weapons.
The policy of brinkmanship refers to the policy that is used to coerce the soviet union to bring down their military aggression without actually making direct confrontation. To do this, Eisenhower relied on intimidation tactics such as increasing military asset and mass destruction weapons.</span><span />
Answer:
Conservation of mechanical energy
Explanation:
Law of Conservation of Mechanical Energy: The total amount of mechanical energy, in a closed system in the absence of dissipative forces (e.g. friction, air resistance), remains constant.
In the absence of air resistance, the mechanical energy of an object moving through the air in the Earth's gravitational field, remains constant (is conserved) while the opposite is the case when there is air resistance involved.