A ________ lens is used to compensate for hyperopia
Fill in the blank(s) with correct word
converging
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FM radio only operates in the frequency range 88 MHz to 108 MHz because
a. higher or lower frequencies are blocked by the ionosphere. b. higher and lower frequencies are not radio waves. c. the government set those limits. d. none of the above
Suppose it is January and the Sun remains above your horizon all day long. Where must you be located?
A) somewhere between the Antarctic Circle and the South Pole B) at the South Pole C) somewhere between the Arctic Circle and the North Pole D) at the North Pole
Process of Science: Why did astronomers identify Pluto as a planet from its discovery? What scientific evidence led to its reclassification?
What will be an ideal response?
If heat is flowing from a table to a block of ice moving across the table, which of the following must be true?
a. The table is rough and there is friction between the table and ice. b. The ice is cooler than the table. c. The ice is changing phase. d. All three are possible, but none is absolutely necessary.