In a neutral atom, the number of electrons equals the number of what other part?
1. Protons
2...
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What property is a characteristic of a substance that can be observed and does not change the identity of the substance
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Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.
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What is the coefficient of kinetic friction μk between the block and the tabletop?
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