Tension in the cables in newtons
A 21 loudspeaker is suspended 3.0 below the ceiling by two cables that are each 40 from vertical. What is the tension in the cables in newtons?
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Suppose the current suddenly increases to 1.74 A in the same direction as before, due to an increase in speed of the bar.
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Pushing on the pump of a soap dispenser compresses a small spring. What compression is required for the spring potential energy to equal 0.0075 J?
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