Answer:
hertz
Explanation:
Usually frequency is measured in the hertz unit, named in honor of the 19th-century German physicist Heinrich Rudolf Hertz. The hertz measurement, abbreviated Hz, is the number of waves that pass by per second. For example, an "A" note on a violin string vibrates at about 440 Hz (440 vibrations per second).
Answer:
lv you too
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Answer:
Marks that are used within a sentence to connect independent clauses with another group of words are called Linking marks. Linking marks signal the reader to pause, but not to stop when reading the sentence.
U 2 can help me by marking as brainliest........
<span>The
first ever smartphone was designed by IBM in 1992. Their first
smartphone was called 'SIMON'. </span>
