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A sound with a frequency of 15 Hz is in the ______________ region of the sound
spectrum.
When the equation H2O + NO2NO + HNO3is balanced, the sum of all the coefficients
(both written and "understood") is ______________.
The _______________ is the name given to all matter, energy, and space.
A stream's load is divided into three components: dissolved load, ______________
load, and bed load.
What is the displacement of a hiker who travels 3.0 km east and then 4.0 km north?
The three major types of seawater movement are waves, ______________, and tides.
The nucleus of an ordinary hydrogen atom consists of a(n) ______________.
Coordinated Universal Time (UTC) is based on ___________.
The theory that Earth's lithospheric plates are in constant, slow motion is called plate
_____________.
Calculate the product of 3.0 107and 1.6 109. Express the answer in standard
powers-of-10 notation.
Voltage has the units of _____________, which is called a volt.
The statement "Different samples of a pure compound always contain the same
elements in the same proportion by mass" is known as the law of ______________.
Daylight hours and night hours are equal in duration throughout the year at the
______________.
The energy of a photon is ______________ proportional to its wavelength.
