The characteristics of the standing wave we can find the backlash for the frequency of the wave when the string is shortened is:
- The new frequency is f = 657 Hz
<h3>How is a standing wave produced?</h3>
A standing wave is produced when a traveling wave meets an obstacle and bounces, the sum of the two waves results in a wave that does not propagate in space.
In the event that the obstacle is a fixed point, there is a node at this point. The expression for the length of the standing wave.
L = 
fundamental frequency
L = 
second harmonic
L = 
third harmonic
L = 
general term.
Where L is the length of the chord, lan the wavelength and n an integer.
Wave speed is related to wavelength and frequency.
v = λ f.
Let's substitute.
v = 
They indicate that initially the string has a length of L₀ = 327 mm= 0.327m and the frequency is f₀ = 440 Hz.
v n = 2L₀ f₀
v n = 2 0.327 440
v n = 287.76
They indicate that the tension on the string do not changes and the speed of the wave depends only on the tension and the density of the string, therefore it is constant, we assume that the harmonic does not change either, therefore the new length.
v n = 2 L f
Let's substitute.
287.76 = 2 L f
f = 
Let's calculate.
f = 
f = 656.99 Hz
In conclusion with the characteristics of the standing wave we can find the backlash for the frequency of the wave when the string is shortened is:
- The new frequency is: f = 657 Hz
Learn more about standing waves here: brainly.com/question/17031219
Answer:
Las estrellas se forman debido a la unión de pequeños elementos y partículas como el hidrógeno y el helio que experimentan una fusión nuclear en el núcleo debido a la intensa presión para formar un nuevo átomo (como dos hidrógeno que se combinan para formar un átomo de helio) que es un proceso. que requiere una gran cantidad de energía para comenzar, por lo que cada reacción de fusión produce una gran cantidad de energía que puede mantener la reacción y equilibra la fuerza gravitacional que atrae las masas de las partículas hacia el centro de la estrella
A medida que la energía de la estrella se irradia, la superficie de la estrella cede la energía en forma de calor y luz de manera que debido a la alta temperatura de las partículas de los átomos de los elementos se mueven muy rápida y energéticamente para emitir fotones rápidamente. (alta frecuencia) que se ve como el alto brillo de la estrella
Explanation:
In an exothermic reaction, there is a transfer of energy to the surroundings in the form of heat energy. The surroundings of the reaction will experience an increase in temperature. Many types of chemical reactions are exothermic, including combustion reactions, respiration & neutralization reactions of bases & acids.
Answer:
efficiency = 5.4%
Explanation:
Efficiency of heat engine is given as
now we will have
so we will have
now we know that
so we have
so efficiency is 5.4%
Answer:
If a neutral atom gains electrons, then it will become negatively charged. If a neutral atom loses electrons, then it become positively charged.
