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3 years ago

Approximately how often does the moon revolve around the earth?

Physics

2 answers:

ad-work [718]3 years ago

7 0

It takes about 27.32 days

Alexxandr [17]3 years ago

4 0

Answer: Approximately 28days

Explanation:

The moon makes a complete rotation around the earth in approximately once every 28days.

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A stationary boat in the ocean is experiencing waves from a storm. The waves move at 59 km/h and have a wavelength of 145 m . Th

krek1111 [17]

Answer:

The time elapses until the boat is first at the trough of a wave is 4.46 seconds.

Explanation:

Speed of the wave, v = 59 km/h = 16.38 m/s

Wavelength of the wave, $\lambda=145\ m$

If f is the frequency of the wave. The frequency of a wave is given by :

$v=f\lambda\\\\f=\dfrac{v}{\lambda}\\\\f=\dfrac{16.38\ m/s}{145\ m}\\\\f=0.112\ Hz$

The time period of the wave is given by :

$T=\dfrac{1}{f}\\\\T=\dfrac{1}{0.112\ Hz}\\\\T=8.92\ s$

We need to find the time elapses until the boat is first at the trough of a wave. So, the time will be half of the time period of the wave.

$T=\dfrac{8.92}{2}\\\\T=4.46\ s$

Hence, this is the required solution.

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2 years ago

How does contrasting the social structure of simple and complex societies?

Lerok [7]

Best Answer: <span>There is little or no surplus so the social inequalities are not significant and economic interaction takes place within egalitarian frame-work.

Brainliest would be awesome</span>

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2 years ago

Which option describes nonmetals?

jonny [76]

Answer:

D: Conducts electrcity poorly

Explanation:

Most conductors are metals, and non- metals are insulators, therefore they dont conduct electricity

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2 years ago

What is efficiency?<br>

tatyana61 [14]

Explanation:

the state or quality of being efficient or able to accomplish something

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2 years ago

The filter reaches therminal velocity with zero paper clips (T or F)

Kaylis [27]

Answer:t

Explanation:

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2 years ago