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rosijanka [135]
2 years ago
11

150J of heat energy

Physics
2 answers:
arsen [322]2 years ago
6 0

Btu/(lb-°F) J/(g-°C i mean this is the correct answer

4vir4ik [10]2 years ago
4 0

Answer:

<u>0.300 J/(g*C)</u>

Explanation:

Specific heat has a unit that describes the amount of heat (J) is required to raise a unit mass (g) by 1 degree temperature (C),  It should take the form of J/(g*C) if we stick with the metric units provided in the question.  Be aware that specific heat can be written in many different formats, all equivalent, but with differing measures.  Examples:

(BTU/kgC)

kJ/(mole*K)

J/(g*C)

and so on.  The specific heat for a material can be expressed in any of these formats.  There are all equivalent, just expressed with different units.

--------------

In this problem:  (150J)/[(100g)*(5C)] = 0.300 J/(g*C)

An accurate value of specific heat may be used for identification of the metal.  The closest I found is Barium (0.290 J/(g*C) and Zinc (0.388 J/(g*C)

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A battery of voltage V delivers power P to a resistor of resistance R connected to it. By what factor will the power delivered t
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Answer:

Explanation:

Power P = V² / R

a ) The resistance is changed to 2.90R

Power will become 1 / 2.9 times .

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3 years ago
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