4 years ago

To find a word’s meaning, the reader can study the surrounding words, which are called the.

Physics

2 answers:

lakkis [162]4 years ago

5 0

Prefixes and root words

Artemon [7]4 years ago

5 0

Answer:

<u>Context clues</u>

Explanation:

When you are reading a text and find an unknown word, one way you can infer the meaning of that word is by using context clues. Context clues refer to all the surrounding information or words of the unknown word. Some types of context clues are direct explanations, synonyms, antonyms and examples or illustrations of the unfamiliar word.

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Explanation:

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3 years ago

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4 years ago

If two firecrackers produce a sound level 85dB. What level does the explosion of one firecracker produce?

mars1129 [50]

Level of sound is related to intensity by this equation

$L = 10 Log \frac{I}{I_o}$

given that

L = 85 dB

also we know that

$I_o = 10^{-12} W/m^2$

now we have

$85 = 10 Log \frac{I}{10^{-12}}$

By solving above equation

$I = 10^{8.5} * 10^{-12}$

$I = 3.16 * 10^{-4} W/m^2$

now above is the intensity due to two firecrackers and if we wish to find the sound level of one firecracker then we will find its half level intensity

$I_1 = \frac{I}{2}$