Standing waves are created by the interference of
A. two waves that don’t move
B. two waves that move in opposite directions but create a pattern that is stationary
C. a moving wave and the medium in which it travels
D. light and sound waves
B. two waves that move in opposite directions but create a pattern that is stationary
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According to Hubble's Law, the greater a galaxy's redshift, the:
A) closer it is to us. B) younger it is. C) faster it's approaching us. D) farther it is from us. E) greater its mass.
How do the size and chemical composition of a planet determine its internal temperature?
What will be an ideal response?
A compound that contains water molecules as part of its formula is called
a. a hydrate. b. an anhydride. c. a hydride. d. a hydroxide.
The unsaturated zone of soil or rock above the water table is called the zone of ______________
Fill in the blank(s) with correct word