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Q. A particle moves along the x axis. It is initially at the position 0.200 m, moving with velocity 0.160 m/s and acceleration -0.370 m/s2. Suppose it moves with constant acceleration for 5.50 s. Find the position of the particle after this time. m

Q. Calculate the electrostatic force of attraction between the electron and the proton in a hydrogen atom, and compare with the force of gravitational attraction between them.

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