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Perform the following calculations and express your answer using the correct number of significant digits. (a) a woman has two bags weighing 13.5 lb and one bag with a weight of 10.2 lb. what is the total weight of the bags? (b) the force f on an object is equal to its mass m multiplied by its acceleration a. if a wagon with mass 55 kg accelerates at a rate of 0.0255 m/s2, what is the force on the wagon? (the unit of force is called the newton and it is expressed with the symbol n.) i downloads history attribution more information back back to top next
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