Fill in the blanks : in the third cell, air from the sinks and moves alongs earths surface toward warming up until it rises near the 60 degrees latitude.

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a electromagnetic waves

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sodium is solid at rt

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.