Molly used a ramp to load boxes into a truck. her input work was 5,000 j and the output work was 3,000 j. what was the mechanical efficiency of the ramp? o a. 167% o b. 2,000% o c. 40% o d. 60%

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey

The answer is d. when it begins to fall back to the child's hand