Answer: i can ask my friend to help she was born ine spain and her parents and born in mecoix
Explanation: : i can ask my friend to help she was born ine spain and her parents and born in mecoix she is 15 i'm 14
Answer:
minimum speed to know if the whistle is working = 16.33m/s
Explanation:
Speed of sound, v= 343m/s
Hearing frequency of dog, f= 21kHz
Hearing Frequency of man, fₐ= 20kHz
Minimum travel speed, vₐ=?
Using the formula;
fₐ=(1-vₐ/v)f
20=(1-vₐ/343)21
(1-vₐ/343)=20/21
vₐ/343=1-0.9524
vₐ=0.0476*343
vₐ=16.33m/s
Lo siento por el mal español
Negro es Black en ingles
Amarillo es Yellow en ingles
Rojo es Red en ingles
22. <span>El maíz espera para ser cocinado en la parrilla.
</span>23. <span>Algunos países tienen sabores de jugos y refrescos, que los Estados Unidos. También tienen diferentes empresas e ingredientes disponibles para hacer determinadas bebidas.</span>
If you translate to english i can helo =)
