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2 years ago

If the fundamental frequency of a violin string is 440 HzHz, what is the frequency of the second harmonic?

Physics

1 answer:

tino4ka555 [31]2 years ago

7 0

Answer:

880Hz

Explanation:

A violin string is an example of an open pipe. An open pipe is open at both ends.

The fundamental frequency is the first harmonic.In an open pipe the second harmonic is twice the fundamental frequency.

Hence, second harmonic = 2Fo

Fo=440Hz

Second harmonic = 2*440Hz

Second harmonic = 880Hz

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4vir4ik [10]

P_1=+3D
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$\\ \bull\tt\dashrightarrow P=P_1+P_2$

$\\ \bull\tt\dashrightarrow P=+3D-2D=+1D$

Now

$\\ \bull\tt\dashrightarrow f=\dfrac{1}{P}$

$\\ \bull\tt\dashrightarrow f=\dfrac{1}{1}$

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2 years ago

The speed of sound through air is approximately 340 m/sec. What is the wavelength of a sound wave with a frequency of 706 Hz? Ro

cestrela7 [59]

Answer:

Wavelength = 0.48 m (Approx)

Explanation:

Given:

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Frequency = 706 hz

Find:

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Wavelength = Speed of sound / Frequency

Wavelength = 340 / 706

Wavelength = 0.48 m (Approx)

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2 years ago

Paul lifts a sack weighing 245 newtons vertically from the ground and places it on a platform at a height of 0.7 meters. If he t

d1i1m1o1n [39]

Answer:

B. 17.15 watts

Explanation:

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Time = 10 seconds

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Substituting the given parameters into the formula

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Recall,

Power = work done/time

Power = 171.5 J ÷ 10

Power = 17.15 watts

Hence the power expended is B. 17.15 watts

6 0

3 years ago

Two coffee cups one at 80 degrees c another at 60 degrees c are put into a large cup what is the final temperature of the coffee

8_murik_8 [283]

If you're trying to sum it up, it would be 140 degrees c*, otherwise it would probably be 80 degrees c since its more hotter than 60 degrees

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2 years ago

A car is traveling up a hill that is inclined at an angle θ above the horizontal. Determine the ratio of the magnitude of the no

padilas [110]

Explanation:

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Where

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g is the acceleration due to gravity

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$F_N=mg\ cos(13)$ .............(2)

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2 years ago