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9966 [12]
3 years ago
13

1.0 liter of 20c water is mixed with 4 liters of 40c water. What will be the temperature of this mixture

Physics
1 answer:
Virty [35]3 years ago
8 0

Answer:

36°C

Explanation:

Heat gained by the cold water = heat lost by the warm water

mCΔT = mCΔT

(1000 g) (4.184 J/g/K) (T − 20°C) = (4000 g) (4.184 J/g/K) (40°C − T)

1000 (T − 20°C) = 4000 (40°C − T)

T − 20°C = 4 (40°C − T)

T − 20°C = 160°C − 4T

5T = 180°C

T = 36°C

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Arif has recently quit smoking. What benefit can he expect to occur within a few hours of quitting?
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A block of mass 11.0 kg slides from rest down a frictionless 38.0° incline and is stopped by a strong spring with
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Answer:

11.72 mm

Explanation:

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