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Naily [24]
3 years ago
10

If you double the period of a pendulum. what happens to its length?​

Physics
2 answers:
zepelin [54]3 years ago
6 0

The only way you COULD double the period would be to make the string 4 times as long as it is now.

victus00 [196]3 years ago
5 0

Answer:

Time period is directly proportional to the length so if the length is doubled the time period is doubled

hope it is helpful....

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An electron in a mercury atom drops
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Since the electron dropped from an energy level i to the ground state by emitting a single photon, this photon has an energy of 1.41 × 10⁻¹⁸ Joules.

<h3>How to calculate the photon energy?</h3>

In order to determine the photon energy of an electron, you should apply Planck-Einstein's equation.

Mathematically, the Planck-Einstein equation can be calculated by using this formula:

E = hf

<u>Where:</u>

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Read more on photons here: brainly.com/question/9655595

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3 years ago
The mass of the car?
Nonamiya [84]

Answer:

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Explanation:

The formula for kinetic energy is:

KE (kinetic energy) = 1/2 × m × v² where <em>m</em> is the <em>mass in kg </em>and <em>v</em> is the velocity or <em>speed</em> of the object <em>in m/s</em>.

We can now substitute the values we know into this equation.

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472 500 = 1/2 × m × 30²

Next, we can rearrange the equation to make m the subject and solve for m:

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Hope this helps!

3 0
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Answer:

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Explanation:

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