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kirza4 [7]
3 years ago
10

¿como puede verificarse si un material es buen conductor termico y buen conductor electrico

World Languages
1 answer:
soldi70 [24.7K]3 years ago
8 0
De forma experimental, podemos saber si un material es conductor térmico si al colocar una fuente de calor en contacto con el material el calor fluye sin resistencia aparente. Por ejemplo, la madera es un mal conductor térmico porque no deja fluir el calor mientras que el aluminio es un excelente conductor térmico.
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Two less than the product of a number and three Evaluate when f = 4.5.
Harman [31]

Complete question :

two less than the product of a number and three Evaluate when f = 4.5.

Evaluating an Algebraic Expression Write and evaluate the expression shown on the left. Then, check all that apply. Write the expression as 2 – 3f. Write the expression as 3f – 2. Write the expression as 2f – 3. The value when f = 4.5 is 6.75. The value when f = 4.5 is 6. The value when f = 4.5 is 11.5.

Answer:

3f - 2

The value when f = 4.5 is 11.5.

Explanation:

2 less than the product of a number and 3

Let the number = f

Product of number and 3 = f * 3 = 3f

2 less than the product :

3f - 2

If the value of f = 4.5

Then, substituting f = 4.5 in the expression :

We have :

3(4.5) - 2

13.5 - 2

= 11.5

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Answer:

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Answer:

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Explanation:

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Read 2 more answers
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