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sp2606 [1]
3 years ago
13

Which describes the amplitude of a wave? A. the length of a wave from one crest to the next crest B. the height of a wave from i

ts rest position to its crest C. the height of a wave from its crest to its trough D. the length of a wave from its crest to its trough
Physics
1 answer:
posledela3 years ago
5 0
The length of a wave so, therefore its D.
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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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2 years ago
When the distance increases, the electrostatic force____; we call this relationship proportional
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Answer:

I think decreases inversely

Explanation:

the third

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A 950-kg car strikes a huge spring at a speed of 22m/s (fig. 11-54), compressing the spring 5.0m. (a) what is the spring stiffne
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(a) The spring stiffness constant of the spring is 18,392 N/m.

(b) The time the car was in contact with the spring before it bounces off in the opposite direction is 0.23 s.

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The kinetic energy of the car is calculated as follows;

K.E = ¹/₂mv²

K.E = ¹/₂ x 950 x 22²

K.E = 229,900 J

<h3>Stiffness constant of the spring</h3>

The stiffness constant of the spring is calculated as follows;

K.E =  U = ¹/₂kx²

k = 2U/x²

k = (2 x 229,900)/(5)²

k = 18,392 N/m

<h3>Force exerted on the spring</h3>

F = kx

F = 18,392 x 5

F = 91,960 N

<h3>Time of impact</h3>

F = mv/t

t = mv/F

t = (950 x 22)/(91960)

t = 0.23 s

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1 year ago
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3 years ago
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What are atoms and molecules constantly doing?
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A. molecules are CONSTANTLY moving.

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