Weegy: A sound wave reaches the ear and the reflected wave reaches the ear less than 0.1 second later describes a condition in which an individual would not hear an echo.
User: The longest wavelength within the visible spectrum is _______ light.
Weegy: The longest wavelength within the visible spectrum is RED light.
User: Through which of the following mediums is the velocity of a sound wave the greatest?
Weegy: The velocity of a sound wave is the greatest through steel.
User: A wave with a period of 0.008 seconds has a frequency of
Question 20 options:
A)
125 Hz.
B)
80 Hz.
C)
800 Hz.
D)
12.5 Hz.
Weegy: A wave with a period of 0.008 second has a frequency of: 125 Hz.
User: Which of the following would not be a reason to create a controlled-fusion reactor?
Weegy: To confine a fission reaction would not be a reason to create a controlled-fusion reactor.
User: Which of the following accurately describes the placement and classification of iodine?
Weegy: Iodine is located in period 5, group 17 and is classified as a nonmetal. - accurately describes the placement and classification of iodine.
User: The molecular mass of sodium oxide (Na2O) is
Weegy: The molecular mass of sodium oxide (Na2O) is 61.97894.
User: The periodic table is based on an element's
Question 4 options:
A)
molecular mass.
B)
atomic number.
C)
atomic mass.
D)
molecular size.
Weegy: The periodic table is based on an element's atomic number.
User: The element fluorine is classified in the periodic table as a/an
Weegy: The element fluorine is classified in the periodic table as halogen.
User: With regard to the pH scale, a solution with a pH
Weegy: With regard to the pH scale, a solution with a pH: close to 14 is considered a strong base.
User:
Which classification of matter includes materials that can no longer be identified by their individual properties?
Weegy: Compound includes materials that can no longer be identified by ...
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