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WileyPLUS × . Physics question ! Checx Secure | https://edugen.wileyplus.com/edugen/student/mainfr.uni C el watch NBA Live StrED D : Apps Home CD HP Connected Watch NHL Live Stre Keaa, Stuay&Practice; 2017-browning-catal 2015-Bianchi-Order, New Tab ghmen AssinnmentOpen Assignment FULL SCREENPRINTER VERSION BACK NEXT ASSIGNMENT RESOURCES Chapter 29, Problem 37 An object is moving along a straight line, and the uncertainty in its position is 2.20 m. (a) Find the minimum uncertainty in the momentum of the object. Find the minimum uncertainty in the object's velocity, assuming that the object is (b) a golf ball (mass = 0.0450 kg) and (c) an electron. (a) Number (b) Number (c) Number Units Units Units 04 GO 09 LINK TO TEX 15 Question Attempts: Unlimited SAVE FOR LATER SUBMIT ANSWER 19 23 CO 26 28 31 O Type here to search 6-21 PM 11/16/2017 2 ^ )

Explanation / Answer

Application of Heisenberg uncertainty principle

p.x= h

h = 6.6 * 10^(-34)

p * 2.2 = 6.6 *10^(-34)

p = 3 * 10^(-34) m^2 kg/ sec

b)uncertainty in velocity

m.v .x = 6.6 * 10^(-34)

v * 4.5*10^(-2) * 2.2= 6.6 * 10^(-34)

v= 0.73 * 10^(-32) m/s

C)

mass of electron= 9.1 * 10^(-31) kg

v. m. x = h/(2)

v= 1.05* 10^(-34) / [ 2* 9.1* 10^(-34) * 2.2]

= 0.026 m/sec

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