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lara [203]
3 years ago
6

When two waves are moving toward each other, and their crests line up with each other, it results in a wave with greater amplitu

de. What is this called?
Physics
1 answer:
Maurinko [17]3 years ago
4 0

constructive interference

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A specific amount of energy is emitted when excited electrons in an atom in a sample of an element return to the ground state. T
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Answer:

C. identity of the element

The specific amount of energy emitted when electrons jump from excited states to the ground state refers to emission spectrum. The energy is emitted in the form of photons, and the photons have very specific wavelengths (energy) that correspond to the energy gaps between the excited states and the ground state. The specific wavelengths of light emitted are referred to as the "emission spectrum," and each element produces a different emission spectrum. Thus, this emitted energy can be used to identify the element from which your sample was taken.

Explanation:

6 0
1 year ago
Someone please help me!
kirill [66]

I think it’s the first one

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3 years ago
a 40 kilogramstudent runs up a staircase to a floor that is 5.0 meters higher than her starting point in 7.0 seconds. the studen
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When she reaches the top, she has more potential energy than she had at the bottom.

         Potential energy = (mass) x (gravity) x (height)

                                     = (40 kg) x (9.8 m/s²) x (5 m)

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         Power = (energy) / (time)

                     = (1,960 joules) / (7 seconds)

                     =         280 watts

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Which best describes the second law of thermodynamics? energy is not created nor destroyed, but it can change into matter. energ
otez555 [7]
<span>the answer is energy is not created nor destroyed, but it can change from one energy form to another.</span>
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3 years ago
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State coulomb's law mathematically
Vsevolod [243]

Coulomb's law is express as:

\begin{gathered} F=k\frac{q_1q_2}{r^2} \\ \text{ where} \\ k\text{ is Coulomb's constant} \\ q_1\text{ and }q_2\text{ are the charges} \\ r\text{ is the distance between charges} \end{gathered}

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1 year ago
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