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dlinn [17]
3 years ago
6

On a timer !

Physics
2 answers:
Alex Ar [27]3 years ago
6 0

Answer:

The ranking of the waves from the lowest energy wave to the highest energy wave is 1 → 4 → 2 → 3.

Explanation:

  • Amplitude is the highest vibrated position of a wave measured from the equilibrium position.
  • So the least amplitude for wave 1 is the least energy representation.
  • Similarly distance from midpoint to crest or trough is also the measure for the energy level of wave. Crest and trough, both are the maximum amplitude condition of the wave.
  • So 12 cm being the highest represents the highest energy level i.e wave 3.
stira [4]3 years ago
4 0

Answer: 1 → 4 → 2 → 3.

Explanation:

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Answer:

(a) 72°

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Explanation:

PENTAGON

First, we calculate the total angles in a Pentagon using:

180(n - 2)

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Hence, the total angle in a polygon is

180(5 - 2) = 180 * 3 = 540°

Therefore, each angle will be:

540°/5 = 108°

Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular pentagon will be:

180 - 108 = 72°

The exterior angle of a regular Pentagon is 72°

NONAGON

First, we calculate the total angles in a Nonagon using:

180(n - 2)

Where n = number of sides of the polygon, in this case, 9.

Hence, the total angle in a polygon is

180(9 - 2) = 180 * 7 = 1260°

Therefore, each angle will be:

1260°/9 = 140°

Because the interior angle and exterior angle form a straight line (180°), the exterior angle of a regular nonagon will be:

180 - 140 = 40°

The exterior angle of a regular Nonagon is 40°

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Answer:

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Explanation:

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Answer ASAP:
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