3 years ago

The distance from the sun to the earth would be which phrase best completes the sentence

1 answer:

6 0

Answer:

The distance from Earth to the sun is called an astronomical unit, or AU, which is used to measure distances throughout the solar system.

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Lynna [10]

Answer: Time taken by a sound impulse to travel through an aluminum rod 25 kilometers long is 4.9 seconds.

Solution:

Length of aluminium rod = 25 km = 25000 m (1 km=1000 m)

Time taken by sound to travel through aluminium = 5100 m/s (from the table given)

$speed=\frac{distance}{time}=\frac{25000 m}{\text{time taken}}$

time taken = $\frac{distance}{speed}=\frac{25000 m}{5100 m/s}=4.9019 seconds\approx 4.9 seconds$

Hence, the correct option is 4.9 seconds.

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3 years ago

Sav [38]

what is your question?

plz ask in English language

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2 years ago

Masteriza [31]

Answer:

NaOH (a strong base)

Ammonia ( weak base )

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2 years ago

Vlad [161]

Answer:

Yes

Explanation:

because they should

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2 years ago

Ivahew [28]

Answer:

Pb^+7

Explanation:

I placed the carrot there to signify the +7 is supposed to be small. It is plus seven because seven nuetrons are added

5 0

2 years ago