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test092p4 - ~(Yl k 18 The hydrogen atom consists of a...

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~ '(Yl? k VV)e.. 18)The hydrogen atom consists ofaproton ofmass ~67 x 10- 27 kg and an orbiting electron ofmass 18) (3. 9.11 x 10- 31 kg. In one ofits orbits, the electron is5.3 x 10- 11 m from the proton. What isthe mutual attractive gravitational force between the electron and proton? ,.., P fJ1 ~ 93 x 10- 47 N 6 .~ ~~ (? (93.6 x 10-47 N r; ==: fYJ p t'ne Fj., C) 5.4 "10-47 N r L !- D)1.8do- 47 N _ •. 67)(10 "'0.67 X 10 .>7) ('{II XIO' II) _ J. (f X /0 - 97j E)7.0do- 47 N - ( _,' ):1 - AI S,j Xro C 19)A5.00-kg box slides 4.00 m across the floor before coming to rest. What isthe coefficient of 19) __ kinetic friction between the floor and the b0tfi:t~ox
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