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ArbitrLikvidat [17]
3 years ago
14

Nancy applies a force to a violin string by pulling her bow across it. The vibrations of the string produce sound waves, which c

ause the wooden portion of the violin to vibrate at its natural frequency.
The violin is designed so that a string vibrates at a frequency that matches the natural frequency of the wooden portion of the instrument. So repeatedly pulling the bow across this string allows _______ to occur.
A.
sound
B.
harmony
C.
muting
D.
resonance
Physics
2 answers:
ra1l [238]3 years ago
6 0

Answer:

option a) sound is the right answer

klasskru [66]3 years ago
6 0

Answer: The correct answer is D. resonance ..

Explanation:

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JulsSmile [24]

The acceleration of the first block (4 kg) is -9.8 m/s².

The given parameters:

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The net force on the system of the two blocks is calculated as follows;

m_2 g - T = m_1 a

where;

  • <em>T </em><em>is the tension in the connecting string due weight of the first block</em>

m_2 g - m_1 g = m_1 a\\\\a = \frac{m_2 g - m_1g}{m_1} \\\\a = \frac{g(m_2 - m_1)}{m_1} \\\\a = \frac{9.8(2-4)}{2} \\\\a = -9.8 \ m/s^2

Thus, the acceleration of the first block (4 kg) is -9.8 m/s².

Learn more about net force on two connected blocks here: brainly.com/question/13539944

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Amiraneli [1.4K]

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6 0
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Can someone please explain number 8?
guajiro [1.7K]

Answer: Ax=(Vx-Vox)/(T)

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Solving for Ax in terms of Vx, Vox, T

Vx-Vox=Ax*t

Ax=(Vx-Vox)/(T)

This is saying the acceleration in the x-direction can be found by taking the difference between the finial and initial Velocity in x-direction and dividing it by the Total Time.

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MakcuM [25]

Answer: The answer is C.) 25 m/s^2.

Explanation: If you input 5 as s, you would have to use the exponent 2.  This means that you have to multiply 5 by 5.  5 x 5= 25.  

Edit: Also, because the surface is frictionless, it will make the object go faster too.  Nothing can really slow it down unless something blocks it.

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You will reach both your arms out to break your fall and save your head.

Explanation:

It common sense you don't want your head injured. Do you?

5 0
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