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Q. A 50.0 g silver spoon at 20.0 C is placed in a cup of coffee at 90.0 C. How much heat does the spoon absorb from the coffee reach a temperature of 89.0 C?

Q. A 30 capacitor initially charged to 30 is discharged through a 2.6 resistor. How long does it take to reduce the capacitor's charge to 9?

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