Huan made a chart to study for an exam about radio waves.
A 2-column table with 1 row. Column 1 is labeled X with entries Changes the frequency of a wave; Is used by cell phones to transmit data. Column 2 is labeled Y with entries Changes the height of a wave; Is used by television stations for pictures.
Which headings best complete the chart?
X: Phase
Y: Pulse
X: Pulse
Y: Phase
X: AM
Y: FM
X: FM
Y: AM
Answers: 3
Chemistry, 22.06.2019 00:30
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
Answers: 1
Chemistry, 23.06.2019 00:10
Covalent compounds: mastery test select the correct answer what is formed when atoms join together with a covalent bond? a. an ion b. a molecule c. a neutral atom d. a noble gas
Answers: 3
Huan made a chart to study for an exam about radio waves.
A 2-column table with 1 row. Column 1 is...
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