To solve the problem it is necessary to take into account the concepts related to beat frequency, i.e., The number of those wobbles per second.
The equation that describes the beat frequency is
For our given case we have that the frequency of the instrument is 440Hz and the Beat frequency is 5Hz therefore,
A) The frequency of the violin would be given by
B) <em>The violinist must loosen the string.</em> As the tightening increases the frequency, thereby increasing the number of beats from 5 to 6, i. e, on thightening the string, the frequency further increases as high frequency will be produced by short trings.
An American city devastated by Hurricane Katrina was New Orleans in 2005.
To solve this problem we will start by defining the relationship of the pitot tube and the value indicated in the pressure. We will take advantage of this relationship to obtain a ratio between the defined pressures and proceed to calculate the total and static pressure of the system through the correlation of pressure in isotropic systems. Finally we will perform this same procedure for pressure. Pitot tube measure the total pressure minus static pressure, then
Express the total pressure and static pressure ratio
![\frac{p_0}{p} = [1+\frac{\gamma-1}{2}M^2]^{\frac{\gamma}{\gamma-1}}](https://tex.z-dn.net/?f=%5Cfrac%7Bp_0%7D%7Bp%7D%20%3D%20%5B1%2B%5Cfrac%7B%5Cgamma-1%7D%7B2%7DM%5E2%5D%5E%7B%5Cfrac%7B%5Cgamma%7D%7B%5Cgamma-1%7D%7D)
![\frac{155}{p} +1 = [1+\frac{1.4-1}{2}(0.7)^2]^{\frac{1.4}{1.4-1}}](https://tex.z-dn.net/?f=%5Cfrac%7B155%7D%7Bp%7D%20%2B1%20%3D%20%5B1%2B%5Cfrac%7B1.4-1%7D%7B2%7D%280.7%29%5E2%5D%5E%7B%5Cfrac%7B1.4%7D%7B1.4-1%7D%7D)
Hence the static pressure is 400.4kPa
Express stagnation to static temperature ratio,
Therefore the stagnation temperature is 316.224K
Answer:1. Find the wavelength in air at 20°C of an ... 19 m. 2. What is the wavelength of an 18-Hz sound wave in seawater at 25°C? ... 3. Find the frequency of a sound wave moving through iron at 25°C with a ... The lowest frequency is. 25. Resonance on Strings A violin sounds a note of F sharp ..
The answer is D. Mountains in North America appear to be the same as those in Northern Europe
