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Questions and answers by visitors named
regn
Questions (3)
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 70 kg. A person
3 answers
563 views
A hiker, who weighs 915 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs
1 answer
633 views
The drawing shows an outstretched arm (0.61 m in length) that is parallel to the floor. The arm is pulling downward against the
2 answers
1,054 views
