Equal angles with the ceiling
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 2.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10 {rm m}.
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World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15m/s^2. How much horizontal force F must a sprinter of mass 62.0 kg exert on the starting blocks to produce this acce
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Does the polarity of the solvent of the various solvent mixtures seem to affect the completeness of the separation of dyes? Why might this be so?
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