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jarptica [38.1K]
3 years ago
5

If 10 waves pass a point each second and their wavelength is 30m, what is their speed?

Physics
1 answer:
svet-max [94.6K]3 years ago
5 0

Answer:

300m/s

Explanation:

velocity = frequency(wavelength)

Since 10 waves pass a point each second, frequency is 10

therefore, speed = (10)(30 = 300m/s

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Radio waves of frequency 1.667 GHzGHz arrive at two telescopes that are connected by a computer to perform interferometry. One p
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Explanation:

The frequency of radio waves is 1.667 GHz

One portion of the same wave front travels 1.260 mm farther than the other before the two signals are combined.

There are two conditions for interference either constructive or destructive.

For constructive interference , the path difference is n times of wavelength and for destructive interference, the path difference is (n+1/2) times of wavelength

We can find wavelength in this case as follows :

\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{1.667\times 10^9}\\\\\lambda=0.1799\ m

If we divide path difference by wavelength,

\dfrac{\delta}{\lambda} =\dfrac{1.26}{0.1799}\\\\\dfrac{\delta}{\lambda} =7\\\\\delta =7\lambda

It means that the path difference is 7 times of the wavelength. it means the two waves combine constructively and the value of m for the path difference between the two signals is 7.

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3 years ago
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so the correct order of this fundamental force is

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5 0
2 years ago
____ waves are often used in heat lamps fill in the blank
Ludmilka [50]
Heat your answer is Heat.

Hoped I helped.
8 0
3 years ago
Read 2 more answers
What's a difference between mercury and oxygen?<br> (They both are elements)
borishaifa [10]

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--  Mercury must be colder than -39°C in order to freeze, but Oxygen
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8 0
3 years ago
An object begins x=75.2 m and undergoes a displacement of -48.7 m. what is its final position?
xz_007 [3.2K]

Answer:

26.5 m

Explanation:

x_{o} = initial position of the object = 75.2 m

x  = final position of the object

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