![subject](/tpl/images/cats/himiya.png)
Chemistry, 04.08.2019 10:30 isabella20142002
Science grade 8 does anyone know this answer to this science question? select the sentence that is true about how a person changes the pitch of sounds when singing. a person stretches the vocal cords to produce higher-frequency sound waves. a person stretches the vocal cords to produce lower-frequency sound waves. a person relaxes the vocal cords to produce higher-frequency sound waves. a person relaxes the vocal cords to produce lower-frequency sound waves.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9Ă10â4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:00
Is 9 correct? and can someone me with 10? itâs due tomorrow, you
Answers: 1
You know the right answer?
Science grade 8 does anyone know this answer to this science question? select the sentence that is...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 21.01.2021 14:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/en.png)
English, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/biologiya.png)
Biology, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 21.01.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 21.01.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 21.01.2021 14:00