Examlex
A 60-kg man is one fourth of the way up a 10-m ladder that is resting against a smooth,frictionless wall.If the ladder has a mass of 25 kg and it makes an angle of 60° with the ground,find the force of friction of the ground on the foot of the ladder.
Memphis Belle
A famous American B-17 bomber that successfully completed 25 missions over Europe during World War II.
Railroad Tracks
Parallel steel rails on which trains run, forming the fundamental infrastructure for railway transportation.
New Jersey
A state located in the Northeastern and mid-Atlantic regions of the United States, known for its diverse population, industries, and being a pivotal site of revolutionary war battles.
Maryland
A U.S. state located in the Mid-Atlantic region, known for its significant historical landmarks, diverse geography, and as the birthplace of the national anthem.
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