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swat32
3 years ago
7

Look at the picture and help me plz

Physics
2 answers:
Sedaia [141]3 years ago
7 0

Answer:

AI

Explanation:

Elenna [48]3 years ago
5 0

Answer:

AI

Explanation:

it stands for artificial intelligents

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a hot piece of copper is placed in an insulated cup. what is the final temperature of the water and copper?
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Option C. 30°C.

Explanation:

The following data were obtained from the question:

Mass of water (Mw) = 0.5 Kg

Specific heat capacity of water (Cw) = 4.18 KJ/Kg°C

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22°C

Change in temperature (ΔT) = T2 – Tw1 = T2 – 22°C

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Change in temperature (ΔT) = T2 – Tc1 = T2 – 115°C

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Thus, we can determine the final temperature of the water and copper as follow:

Q = MwCwΔT + McCcΔT

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0 = 2.09 (T2 – 22) + 0.193 (T2 – 115)

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Collect like terms

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T2 = 68.175/2.283

T2 = 29.8 ≈ 30°C

Therefore, the final temperature of water and copper is 30°C.

8 0
3 years ago
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