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Veronika [31]
3 years ago
8

Find the first three harmonics of a string of linear mass density 2.00 g/m and length 0.600 m when the tension in it is 50.0 n.

Physics
1 answer:
blsea [12.9K]3 years ago
8 0

As we know that Nth harmonic of the string is given by

f = \frac{N}{2L}\sqrt{\frac{T}{m/L}}

now here we will have

m/L = mass density = 2 g/m

m/L = 0.002 kg/m

Length = L = 0.600 m

Tension = T = 50.0 N

now from above formula we have

f = \frac{N}{2(0.600)}\sqrt{\frac{50.0}{0.002}}

f = 131.8N

now for first harmonic N = 1

f_1 = 131.8 Hz

for second harmonic N = 2

f_2 = 263.5 Hz

for third harmonic N = 3

f_3 = 395.3 Hz

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A los 10 segundos su velocidad será 15 \frac{m}{s}

Explanation:

La aceleración de un objeto es una magnitud que indica cómo cambia la velocidad del objeto en una unidad de tiempo.

En otras palabras, la aceleración relaciona los cambios de la velocidad con el tiempo en el que se producen, es decir que mide cómo de rápidos son los cambios de velocidad:

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a=\frac{vfinal - vinicial}{tiempo}

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  • a= 1 \frac{m}{s^{2} }
  • vfinal= ?
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Reemplazando:

1\frac{m}{s^{2} }=\frac{vfinal - 5\frac{m}{s} }{10 s}

Resolviendo se obtiene:

1 \frac{m}{s^{2} } *10 s= vfinal - 5 \frac{m}{s}

10 \frac{m}{s} = vfinal - 5 \frac{m}{s}

10 \frac{m}{s} + 5 \frac{m}{s} = vfinal

15 \frac{m}{s} = vfinal

<u><em>A los 10 segundos su velocidad será 15 </em></u>\frac{m}{s}<u><em></em></u>

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