2 years ago

The wave produced by a piano's middle C has a frequency of 440 Hz

Physics

1 answer:

bogdanovich [222]2 years ago

3 0

Answer:

0.78 m

Explanation:

I just did a hw question for this its just 344 divided by 440

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dsp73

Answer:

true

Explanation:

The law of conservation of charge states that whenever electrons are transferred between objects, the total charge remains the same.

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3 years ago

The peak intensity of radiation from a star named sigma is 2 x 10^6 mmkay. What is the average surface temperature of Sigma roun

Igoryamba

Answer:

1.45 K

I had the same question and i got it right.

8 0

3 years ago

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2 pts

const2013 [10]

Answer:

I think the answer 1

Explanation:

im probably wrong too i dont know

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2 years ago

Please Answer the question in the picture ASAP PLEASE

attashe74 [19]

Answer:

HERE IS YOUR ANSWER

Explanation:

PLEASE MARK MY ANSWER AS BRAINLIEST IF THE ANSWERS ARE CORRECT .

Beacuse of the loose connection of the wire .

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2 years ago

You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headligh

choli [55]

Answer:

They can be seen from a distance of 4.372 kilometers.

Explanation:

Using the Reyligh creterion for diffraction through a circular aperture we have

$\frac{x}{D}=\frac{1.22\lambda }{d}$

where symbol's have their usual meaning

thus applying values we get

$D=\frac{dx}{1.22\lambda }$

$\therefore D=\frac{0.633\times 4.61\times 10^{-3}}{1.22\times 547\times 10^{-9}}\\\\D=4372.77m\\=4.372km$

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2 years ago