The Physics Classroom
Includes lengthy tutorials, a collection of GIF animations, Javascript-driven Internet problems, interactive Shockwave activities, unit reviews (with answers), and sample quizzes.

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1	physics	7	166
2	10 newtons	2	10
3	newton's third law	1	3
4	resultant vectors	1	1
5	incident pulse	1	1
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7	for every action there is an equal and opposite reaction	1	1
8	electromagnetic waves can travel only through a vacuum	1	1
9	examples of newton's first law	1	1
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34	newtons 2 law of motion	1	1
35	circular motion equations	1	1