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Iteru [2.4K]
3 years ago
15

Calculate the heat added to 3kg of water if the temperature increases from 30 C to 60 C.

Physics
1 answer:
sweet-ann [11.9K]3 years ago
5 0

Answer:  B is right

Explanation:  Heat Q =  m Cv ΔT = 3.0 kg · 4186 J / (kg·K) · 30 K≈ 376 740 J

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5 0
3 years ago
An object starts at rest. Its acceleration over 30 seconds is shown in the graph below:
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Answer:

The instantaneous speed of the object after the first five seconds is 12.5 m/s.

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6 0
3 years ago
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