Question
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21-66
Eight 1.00-muC charges are arrayed along the y-axis located every 2.00 cm starting at y = 0 and extending to y = 14.0 cm. Find the force on the charge at y = 4.00 cm. In a simplified Bohr model of the hydrogen atom, an electron is assumed to be traveling in a circular orbit of radius of about 5.29 middot 10-11 m around a proton. Calculate the speed of the electron in that orbit. The nucleus of a carbon-14 atom (mass = 14 amu) has diameter of 3.01 fm. It has 6 protons and a. charge of +6e. What is the force on a proton located at 3.00 fm from the surface of this nucleus? Assume that the nucleus is a point charge. What is the proton's acceleration? Two charged objects experience a mutual repulsive force of 0.100 N. If the charge of one of the objects is reduced by half and the distance
Explanation / Answer
equate centripetal force with coulomb force between two point charges.
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