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The three fusion reactions used by the Sun to generate energy are together known as the
_______________.
What is the wavelength, in meters, of radio waves produced by a radio station with a
frequency of 1400 kHz?
(c= 3.00 x 108m/s)
In 1960, ______________ proposed the concept of seafloor spreading.
A lunar eclipse occurs when the Moon is in the ______________ phase.
A CD player uses a laser whose light frequency is 3.85 x 1014 Hz. Calculate the energy,
in joules, of the photons.
Earth's third largest ocean is the ______________ Ocean.
A scientist named ______________ discovered the proton in 1919.
The distance between Earth and the Sun is 93,000, 000 miles, or one______________.
Water must be pumped out of water-table wells but not out of ______________ wells.
If a negatively charged object is brought near a suspended, positively charged object,
the suspended object will be ______________.
Complete the equation, and state what type of decay is occurring.
*_____________ +
The speed of light in diamond is 1.24 108m/s. What is the index of refraction of
diamond?
The preferred name of Cu2S is ______________.
Elements have similar chemical properties because they have the same number of
electrons in their ______________.
The intensity of a 70-dB whistle is doubled. What is the new decibel level?
A pendulum has how many natural frequencies?
Collapsed cavern ceilings can cause ______________ to appear on the land's surface.
