They continued to study its behavior and decided that it probably travels<span> in both waves and particles.
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Answer:
1) mass of the objects
2) distance between their centers
Air pollution from fossil fuels is stated by scientists to be able to make Acid rain. :)
It doesn't really matter how long the pendulum is now. If the clock is running too fast, then you should slightly INcrease the length of the pendulum. Short ones swing faster. Long ones swing slower.