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lisov135 [29]
3 years ago
11

Why is our day on earth 24 hours long

Physics
2 answers:
ra1l [238]3 years ago
8 0
Because of the axis of the earth. It takes 24 hours to rotate 360 degrees.
Hitman42 [59]3 years ago
4 0

That is how long it takes for the Earth to rotate fully all the way around on its axis.

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A 0.10 newton spring toy with a spring constant of 160 newtons per meter is compressed 0.05 meter before it is launched. When re
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Answer:

(1) V = 0.2 J (2) 0.05J

Explanation:

Solution

Given that:

K = 160 N/m

x = 0.05 m

Now,

(1) we solve for the  initial potential energy stored

Thus,

V = 1/2 kx² = 0.5 * 160 * (0.05)²

Therefore V = 0.2 J

(2)Now, we solve for how much of the internal energy is produced as the toy springs up to its maximum height.

By using the energy conversion, we have the following

ΔV = mgh

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The internal energy = 0.2 -0.15

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3 years ago
Which of the following statements explains one way that oceans influence the temperature of the tropics and poles?
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Answer:

c

Explanation:

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2 years ago
What is the period of a wave with a frequency of 100 Hz and a wavelength of 2.0 m
spin [16.1K]

The answer for the following answer is answered below.

  • <u><em>Therefore the time period of the wave is 0.01 seconds.</em></u>
  • <u><em>Therefore the option for the answer is "B".</em></u>

Explanation:

Frequency (f):

The number of  waves that pass a fixed place in a given amount of time.

The SI unit of frequency is Hertz (Hz)

Time period (T):

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The SI unit of time period is seconds (s)

Given:

frequency (f) = 100 Hz

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To calculate:

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We know;

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from the formula;

  T = \frac{1}{f}

 T = \frac{1}{100}

  T = 0.01 seconds

<u><em>Therefore the time period of the wave is 0.01 seconds.</em></u>

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3 years ago
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All atomic nuclei except those of ordinary hydrogen contain neutrons<br> true or false
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The answer to this question is False
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