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maxonik [38]
3 years ago
7

The specific heat of iron is 0.11 cal (g°C) . A cafeteria fork made of iron has a mass of 20 grams. How much heat energy is need

ed to raise the temperature of this fork from 25°C to 75°C?
Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0
The amount of energy needed is 110 calories. We know this by dong the following:
<span>Q=20×0.11×<span>(75−25)</span></span>
<span>⇒Q=20×0.11×50</span>
<span>⇒Q=110<span> cal
Bu doing this you have the required heat represented as Q that is supposed to raise the temperature of fork that will be equivalent to the mass multiplied by the specific heat and also by the change in temperature</span></span>
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Answer:

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AysviL [449]

The area of the largest circular fire pit is 452 square inches.

Explanation:

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A=(3.14)1^2

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The feet can be converted into inches by multiplying by 12.

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5 0
3 years ago
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dimulka [17.4K]
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