Pregunta
upstudy study bank question image url

How much louder (more intense) is a \( 42-\mathrm{dB} \) sound than a \( 10-\mathrm{dB} \) sound? The \( 42-\mathrm{dB} \) sound is \( \square \) times as loud as the \( 10-\mathrm{dB} \) sound. (Round to the nearest integer as needed.)

Ask by Graham Johnson. in the United States
Mar 12,2025

Solución de inteligencia artificial de Upstudy

Respuesta verificada por el tutor

Responder

The \( 42\text{-dB} \) sound is approximately 1585 times as loud as the \( 10\text{-dB} \) sound.

Solución

Let the sound intensities be \( I_{42} \) and \( I_{10} \) for the \( 42\text{-dB} \) and \( 10\text{-dB} \) sounds respectively. The decibel level is defined by \[ \beta = 10 \log_{10}\left(\frac{I}{I_0}\right) \] where \( I_0 \) is the reference intensity. For the \( 42\text{-dB} \) sound: \[ 42 = 10 \log_{10}\left(\frac{I_{42}}{I_0}\right) \quad \Longrightarrow \quad \frac{I_{42}}{I_0} = 10^{4.2} \] For the \( 10\text{-dB} \) sound: \[ 10 = 10 \log_{10}\left(\frac{I_{10}}{I_0}\right) \quad \Longrightarrow \quad \frac{I_{10}}{I_0} = 10^{1} = 10 \] The ratio of the intensities is: \[ \frac{I_{42}}{I_{10}} = \frac{10^{4.2}}{10^{1}} = 10^{4.2 - 1} = 10^{3.2} \] To compute \( 10^{3.2} \), note that: \[ 10^{3.2} = 10^3 \times 10^{0.2} \approx 1000 \times 1.585 = 1585 \] Thus, the \( 42\text{-dB} \) sound is approximately \( 1585 \) times as intense as the \( 10\text{-dB} \) sound.

Respondido por UpStudy AI y revisado por un tutor profesional

error msg
Explicar
Simplifique esta solución

Extra Insights

To determine how much louder a \( 42-\mathrm{dB} \) sound is compared to a \( 10-\mathrm{dB} \) sound, we can use the formula that relates decibels to intensity. The decibel level is given by: \[ L = 10 \log_{10} \left( \frac{I}{I_0} \right) \] where \( L \) is the sound level in decibels, \( I \) is the intensity of the sound, and \( I_0 \) is a reference intensity (commonly taken as \( 10^{-12} \, \mathrm{W/m^2} \)). To find the intensity ratios, we can rearrange the formula. For the \( 42-\mathrm{dB} \) sound: \[ I_{42} = I_0 \times 10^{\frac{42}{10}} = I_0 \times 10^{4.2} \] For the \( 10-\mathrm{dB} \) sound: \[ I_{10} = I_0 \times 10^{\frac{10}{10}} = I_0 \times 10^{1} \] Next, we can find the ratio of the intensities: \[ \frac{I_{42}}{I_{10}} = \frac{I_0 \times 10^{4.2}}{I_0 \times 10^{1}} = 10^{4.2 - 1} = 10^{3.2} \] Calculating \( 10^{3.2} \): \[ 10^{3.2} \approx 1585.0 \] So, rounding to the nearest integer, a \( 42-\mathrm{dB} \) sound is approximately \( 1585 \) times as loud as a \( 10-\mathrm{dB} \) sound.

preguntas relacionadas

Latest Physics Questions

¡Prueba Premium ahora!
¡Prueba Premium y hazle a Thoth AI preguntas de matemáticas ilimitadas ahora!
Quizas mas tarde Hazte Premium
Estudiar puede ser una verdadera lucha
¿Por qué no estudiarlo en UpStudy?
Seleccione su plan a continuación
Prima

Puedes disfrutar

Empieza ahora
  • Explicaciones paso a paso
  • Tutores expertos en vivo 24/7
  • Número ilimitado de preguntas
  • Sin interrupciones
  • Acceso completo a Respuesta y Solución
  • Acceso completo al chat de PDF, al chat de UpStudy y al chat de navegación
Básico

Totalmente gratis pero limitado

  • Solución limitada
Bienvenido a ¡Estudia ahora!
Inicie sesión para continuar con el recorrido de Thoth AI Chat
Continuar con correo electrónico
O continuar con
Al hacer clic en "Iniciar sesión", acepta nuestros términos y condiciones. Términos de Uso & Política de privacidad