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Fifty grams (50g) of hot water at 90 degrees C are mixed with 70g of cold water at 20 degrees C.
(a) What is the final temperature of the mixture when it reaches equilibrium?
(b) Suppose the hot (90 degrees C) material is not water, but is 50g of aluminum instead. The specific heat capacity of aluminum is 0.216/cal/g/degrees C. What is the equilibrum teperature when the aluminum is placed in 70g of 20 degree C water?
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Light at two different wavelengths, 750nm and 450nm, is shone through the same single slit at the same time. Determine the slit's width
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An 8300-pF capacitor holds plus and minus charges of 1.35×10?7C. What is the voltage across the capacitor
A 2.30-? F capacitor is fully charged by being connected to a 6.0-V battery. The fully charged capacitor is then connected to a 0.250-H inductor.
Conside a spherical asteroid (radius 10km and constant mass density 3g/cm^3). The core extends to 3km, Determine the temperature at the center of the asteroid
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