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Q. Mrs. Johnson has attached a sign that has a weight of 495 N (Fv) to a wall outside her office, as shown in the diagram. Determine (a) the magnitude of the tension in the chain and (b) the thrust force (Fh) exerted by the rod against the wall.

Q. A steel paper clip is bent by a force of 10.0 N exerted on it through a distance of 5.00 cm.By how much does the temperature of the midsection of the paper clip increase if all the energy goes into the internal energy of this section, which has a mass of 0.100 g?

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