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Q. A 65.0 g piece of cadmium is at 18.3 oC. If 290 cal of heat is added to the cadmium, what is its final temperature?

Q. To increase the range of the water, Isabella places her thumb on the hose hole and partially covers it. Assuming that the flow remains steady, what fraction f of the cross-sectional area of the hose hole does she have to cover to be able to spray her friend?

Assume that the cross section of the hose opening is circular with a radius of 1.5 centimeters.

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