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2 years ago

The two waves shown here are the same distance from point x and are traveling toward each other

Physics

2 answers:

lara [203]2 years ago

5 0

Answer:

A). 0.0 cm

Explanation:

When two waves travel and meet at the same point, a phenomenon known as interference occurs.

The two extreme cases of interference are the following:

- When two waves in phase meet at the same point, the resultant wave produced by the interference has amplitude which is the sum of the amplitude of the individual waves

- When two waves in anti-phase meet at the same point, the resultant wave produced by the interference has amplitude which is the difference between the amplitudes of the individual waves

In this problem, we have two waves of amplitde A1 = 2.0 cm and A2 = 2.0 cm that meet at X in anti-phase (because they have opposite displacement): therefore, it is a destructive interference, and the resultant amplitude will be

$A=A_1 -A_2 = 2.0 cm - 2.0 cm = 0.0 cm$

kompoz [17]2 years ago

3 0

The Answer should be A: 0.0

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Additional Problem: A simple pendulum, consisting of a string (of negligible mass) of length L with a small mass m at the end, i

kykrilka [37]

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Explanation:

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P = W / t = F. d / t = F. v

If we use Newton's second law, with one axis of the tangential reference system to the trajectory and the other perpendicular, in the direction of the rope, the only force we have to break down is the weight

sin θ = Wt / W

Wt = W sin θ

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P = F v

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θ = θ₀ cos (wt)

Let's replace

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P = W θ₀ sint θ cos (wt)

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θ = wt

P = Wθ₀ sin θ cos θ

Let's use

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2θ = 90

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