A.) Hertz is the measuring unit for frequency!!
[Your explanation is correct]
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The best and most correct answer among the choices provided by your question is the third choice or letter C.
<span>The statement "Your hypothesis must be testable." is true about the scientific process.
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The answer is D) Velocity
Whatever phase of the moon Ike sees, he can expect to see
the same phase of moon again, after 29.53 days later.
