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What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
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Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Transverse waves travel with a speed of 20 m/s on a string under a tension 0f 6.00 n. what tension i...
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