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

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Unformatted text preview: ~ '(Yl? k 18) The hydrogen atom consists of a proton of mass ~67 x 10-27 kg and an orbiting electron of mass 9.11 x 10-31 kg. In one of its orbits, the electron is 5.3 x 10-11 m from the proton. What is the mutual attractive gravitational force between the electron and proton? ,.., P 47 N x 10x 6 r; ~ 93 (93.6 10-47 N rL C) 5.4 " 10-47 N D) 1.8 do-47N E)7.0 do-47N _ •. .~ fYJp t'ne ==: 67)(10 "'0.67 - ( S,j .>7) ('{II _,' ):1 Xro X 10 XIO' ~~ Fj., VV)e.. 18) (3. fJ1 (? !- II) _ J. (f X /0 - 97j - C 19) A 5.00-kg box slides 4.00 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floor and the b0tfi:t~ox had an initial speed of 3.00 m/ s? A) 0.587 B) 0.229 ~ D) 1.13 E) 0.267 19) __ 20) The ratio of kinetic energy of object A to the kinetic energy of object B is 2:1. Object A is moving with a speed of 6.0 m/ s and object B is moving with a speed of 2.0 m/ s. If the mass of object A is 4.0 kg then what is the mass of object B? A) 2.0 kg B) 16 kg C) 8.0 kg ~ E) 4.0 kg vj.. 2.. k J-. l. f'- ~ ~ rr. V / = 2. 'f'lA V~ ~ 20) r:;::::t::~ (i-)2.. -.t.. KC ;: M )., 0> rlb -" @,Uf>&)(tj1. V;,:::; +-:= 13 2, q rnO Vl:) =zg F:J-/ 4 ;;;J .D AI ...
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This note was uploaded on 12/10/2011 for the course PHY 1111 taught by Professor Stencil during the Fall '11 term at University of Georgia Athens.

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