Chemistry, 28.03.2020 19:43 mrashrafkotkaat
Which of the following best describes how wireless telephones are able to receive and produce sound from one person to another?
A.
Electromagnetic waves are received and then vibrate a speaker which produces additional electromagnetic waves.
B.
Sound waves are received and then vibrate a speaker which produces electromagnetic waves.
C.
Sound waves are received and then vibrate a speaker which produces additional sound waves.
D.
Electromagnetic waves are received and then vibrate a speaker which produces sound waves.
Answers: 1
Chemistry, 21.06.2019 14:20
Which of the following statements is not true? • a. covalent compounds have low melting and boiling points. • ob. covalent bonds between atoms of a compound are relatively weak compared to bonds between molecules. • c. covalent bonds occur between nonmetals. • d. covalent compounds are often gases or liquids.
Answers: 2
Chemistry, 22.06.2019 00:00
Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating
Answers: 1
Chemistry, 22.06.2019 01:30
There are main groups in the modern periodic table of elements
Answers: 1
Chemistry, 22.06.2019 05:00
Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted
Answers: 1
Which of the following best describes how wireless telephones are able to receive and produce sound...
Engineering, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
Biology, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
History, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
English, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06
History, 19.05.2020 14:06
Mathematics, 19.05.2020 14:06