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khan academy for physics | 1.61 | 0.9 | 9908 | 24 | 23 |
physics c khan academy | 0.57 | 0.1 | 8738 | 22 | 46 |
khan academy university physics | 0.47 | 0.8 | 5612 | 31 | 35 |
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kahn academy physics 1 | 0.26 | 0.8 | 3824 | 22 | 31 |
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khan academy basic physics | 0.98 | 0.8 | 3810 | 26 | 72 |
khan academy physics answers | 0.74 | 0.1 | 7802 | 28 | 22 |