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3 years ago

Hiw do we have day and night cycles? What is the speed of light?How and Why do we have seasons? Please answer

Physics

2 answers:

Ratling [72]3 years ago

8 0

Answer:

1. Earth rotates on its axis; this causes us to experience day and night.

2. The speed of light is 186000 miles per second

3. The four seasons happen because of the tilt of the Earth's axis. At different times of the year, the sun's rays hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer.

Explanation:

Mashutka [201]3 years ago

3 0

Answer:

Seasons occur because of the tilt of the earth's axis which is at an angle of 23.5o. As the earth rotates, the sun rays hit different parts of the globe more directly than others... that's why in the UK its Summer when its Winter in Australia ie North/South hemisphere.

Google speed of light for eg mph, km/h etc but the exact figure is 299,792,458 metres per second

Explanation:

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4 years ago

A current of 1.4 A flows in a conductor for 7.0 s. How much charge passes a given point in the conductor during this time?

bija089 [108]

Answer:

The charge passes a given point in the conductor during this time is 9.8 C.

Explanation:

Given that,

Current = 1.4 A

Time = 7.0 sec

We need to calculate the charge during this time

Charge :

Charge is the product of current and time.

In mathematically form,

$Q = i\times t$

Where, i = cirrent

t = time

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$Q =1.4\times7.0$

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3 years ago

If an ocean wave passes a stationary point every 5 s and has a velocity of 10 m/s, what is the wavelength of the wave

Rainbow [258]

Answer:

As Per Provided Information

Velocity of wave v is 10m/s

These ocean wave passes a stationary point every 5 s ( It's time period)

First we calculate the frequency of ocean wave .

Using Formulae

$\blue{\boxed{\bf \: \nu = \cfrac{1}{v}}}$

here

v is the velocity of wave .

$\sf\longrightarrow \nu \: = \cfrac{1}{10} \\ \\ \\ \sf\longrightarrow \nu \: = 0.1Hz$

Now calculating the wavelength of the wave .

Using Formulae 

$\boxed{ \bf \lambda = \cfrac{v}{ \nu}}$

Substituting the value and we obtain

$\sf \longrightarrow \lambda \: = \cfrac{10}{0.1} \\ \\ \\ \sf \longrightarrow \lambda \: = \cancel\cfrac{10}{0.1} \\ \\ \\ \sf \longrightarrow \lambda \: =100m$

Therefore,

Wavelength of the wave is 100 metres.

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3 years ago

Hiw do we have day and night cycles? What is the speed of light?How and Why do we have seasons? Please answer ​

Hiw do we have day and night cycles? What is the speed of light?How and Why do we have seasons? Please answer