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harina [27]
3 years ago
11

When cleaning a storage battery you can use a solution of water and ammonia or solution of water and

Physics
1 answer:
Anettt [7]3 years ago
7 0
Water and baking soda can be used, too.
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It is recommended that children have no more than two sets of dental X-rays per year. Although X-rays have many benefits, they c
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Although X-rays have many benefits, they can be dangerous to human health because they are short wavelength, high frequency, with photons sufficiently energetic to damage DNA molecules.

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Nitrogen fixation is the conversion of
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2 years ago
ou are out stargazing with your 13.4-cm telescope. You point your telescope at an interesting formation in the sky, which you th
Alinara [238K]

Answer:

θ = 4.716 10⁻⁶ rad

Explanation:

In order for the releases to be considered separate, they must meet the Rayleigh criterion that establishes that the maximum diffraction of one star must coincide with the first minimum of the diffraction pattern of the second star.

We use the diffraction equation for a slit

            a sin θ = m λ

The minimum occurs at m = 1

             sin θ = λ / a

Since the angles in these systems are very small, we can approximate the sine to its angle in radians

             θ = λ / a

The telescope has a circular aperture whereby polar cords should be used, which introduces a constant number

           θ = 1.22 λ / a

Let's calculate

          θ = 1.22 518 10⁻⁹ / 13.4 10⁻²

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8 0
3 years ago
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visible light waves

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2 years ago
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People often think that Galileo dropped two objects of dramatically different mass off of the Leaning Tower of Pisa that both hi
kramer

Answer: because of air resistance. See explanation for further details.

Explanation: Galileo performed an experiment to proof that the time of descent of two different masses is independent of time.

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If the experiment is performed in a vacuum, it will always be true that time is independent of masses of two falling objects.

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