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A 9.0*10^-2kg ice cube at 0.0 degrees celcius is dropped into a styrofoam cup holding .35 kg of water at 13 degrees celcius.
1) Find the final tempature of the system. Assume the cup and the sourroundings can be ignored. Answer in degrees celcius.
2) Find the amount of ice (if any) remaining. Answer in kg.
3) Find the initial tempature of the water that would be enough to just barely melt all of the ice. Answer in degrees celcius.
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Two point charges are on the y-axis, one of magnitude 3.0 ? 10-9 C at the origin and a second of magnitude 6.0 ? 10-9 C at the point y = 25 cm
How much time would it take for her to emit a net radiant.
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Physics two skaters with masses of 65 kg and 45 kg, respectively stand 8.0 m apart each holding one end of a rope. If they pull themslevles along the the rope until they meet explain how far does each skater travel?
A train horn is heard at a 50 dB level by an observer 10 km away. What is the average power generated by the horn
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