Physics for Scientists and Engineers with Modern Physics
4th Edition
ISBN: 9780131495081
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Question
Chapter 38, Problem 11P
To determine
The uncertainty in the mass of neutron.
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(c) A proton confined in a one dimensional box emits a 2.0 MeV gamma-ray photon in a quantum jump
from n = 2 to n = 1. What is the length of the box? The mass of a proton is 1.67 x 1027 kg.
The velocity of a neutron is measured to be
6.0 x 106 m s-1 with an
uncertainty of 1.0 × 103 m s-1.
(i) What is the minimum uncertainty of the
simultaneous
measurement of the position of the neutron?
(ii) State how the minimum
uncertainties of a measured energy and a
measured time are related
If a proton has an uncertainty in its velocity of 5.90 × 10⁻⁴ m/s, what is the uncertainty (in meters) in its position?
Chapter 38 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 38.3 - Prob. 1AECh. 38.8 - Prob. 1BECh. 38.8 - Prob. 1CECh. 38.9 - Prob. 1DECh. 38 - Prob. 1QCh. 38 - Prob. 2QCh. 38 - Prob. 3QCh. 38 - Prob. 4QCh. 38 - Would it ever be possible to balance a very sharp...Ch. 38 - Prob. 6Q
Ch. 38 - Prob. 7QCh. 38 - Prob. 8QCh. 38 - Prob. 9QCh. 38 - Prob. 10QCh. 38 - Prob. 11QCh. 38 - Prob. 12QCh. 38 - Prob. 13QCh. 38 - Prob. 14QCh. 38 - Prob. 15QCh. 38 - Prob. 16QCh. 38 - Prob. 17QCh. 38 - Prob. 18QCh. 38 - Prob. 1PCh. 38 - Prob. 2PCh. 38 - Prob. 3PCh. 38 - Prob. 4PCh. 38 - Prob. 5PCh. 38 - Prob. 6PCh. 38 - Prob. 7PCh. 38 - Prob. 8PCh. 38 - Prob. 9PCh. 38 - Prob. 10PCh. 38 - Prob. 11PCh. 38 - Prob. 12PCh. 38 - Prob. 13PCh. 38 - Prob. 14PCh. 38 - Prob. 15PCh. 38 - Prob. 16PCh. 38 - Prob. 17PCh. 38 - Prob. 18PCh. 38 - Prob. 19PCh. 38 - Prob. 20PCh. 38 - Prob. 21PCh. 38 - Prob. 22PCh. 38 - Prob. 23PCh. 38 - Prob. 24PCh. 38 - Prob. 25PCh. 38 - Prob. 26PCh. 38 - Prob. 27PCh. 38 - Prob. 28PCh. 38 - Prob. 29PCh. 38 - Prob. 30PCh. 38 - Prob. 31PCh. 38 - Prob. 32PCh. 38 - Prob. 33PCh. 38 - Prob. 34PCh. 38 - Prob. 35PCh. 38 - Prob. 36PCh. 38 - Prob. 37PCh. 38 - Prob. 38PCh. 38 - Prob. 39PCh. 38 - Prob. 40PCh. 38 - Prob. 41PCh. 38 - Prob. 42PCh. 38 - Prob. 43PCh. 38 - Prob. 44PCh. 38 - Prob. 45PCh. 38 - Prob. 46GPCh. 38 - Prob. 47GPCh. 38 - Prob. 48GPCh. 38 - Prob. 49GPCh. 38 - Prob. 50GPCh. 38 - Prob. 51GPCh. 38 - Prob. 52GPCh. 38 - Prob. 53GPCh. 38 - Prob. 54GPCh. 38 - Prob. 55GPCh. 38 - Prob. 56GPCh. 38 - Prob. 57GPCh. 38 - Prob. 58GPCh. 38 - Prob. 59GP
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- (I) A proton is traveling with a speed of (8.660 ± 0.012) × 10° m/s. With what maximum precision can its position be ascertained? [Hint: Ap = m Av.]arrow_forwardA free neutron (m=1.67 x 10-27 kg )has a mean lifeof 880 s. What is the uncertainty in its mass (in kg)?arrow_forwardThe uncertainty in the velocity V of a moving electron of mass 10−4010−40 kg is 2 x106m/s2 x106m/s . Calculate the uncertainty of the simultaneous measurement of its position X. [Take 6.63 x10−346.63 x10−34 ]arrow_forward
- Please asaparrow_forward(Newton's Law of Cooling Experiment): Find the uncertainty of temperature pf the cooling rate using the provided data below(Calculate it using the neccessary formulas) Time(s) Temperature 0 93 1 87 2 84 3 81 4 78 5 76 6 74 7 72 8 70 9 68 10 66 11 65 12 64 13 62 14 61 15 60 16 59 17 58 18 56 19 55 20 54 21 53 22 52 23 51,5 24 51 25 50 26 49,5 27 49 28 48 29 47,5 30 47 31 46 32 45,5 33 45 34 44,5 35 44 36 43,5 37 43 38 42 39 41,5 40 41 41 40,5 42 40 43 39,75 44 39,5 45 39 46 38,75 47 38,5 48 38 49 37,75 50 37,5 51 37 52 36,75 53 36,5 54 36 55 35,75 56 35,5 57 35 58 34,5 59 34,25 60 34 61 33,75 62 33,5 63 33,25 64 33 65 32,75 66 32,5 67 32,25 68 32 69 31,75 70 31,625 71 31,5 72 31,375 73 31,25 74 31,125 75 31 76 30,875 77 30,75 78 30,625 79 30,5 80 30,375 81 30,125 82 30 83 29,875 84 29,75 85 29,5 86 29,375 87…arrow_forwardFind the smallest possible uncertainty in the position of an electron moving with velocity 3x107 m/s. (Given: ħ= 1.054x10-34 Js, m. - 9.11 ×10-³1 kg) = Calculate 41 Jissarrow_forward
- The lifetime of a muon in its own frame of reference is measured to be 3.10 x 10 s. What is the minimum uncertainty in the energy of the muon? (Give your answer in electron-volts)arrow_forwardThe speed of a certain proton is 350 km s-1. If the uncertainty in its momentum is 0.0100 per cent. what uncertainty in its location must be tolerated?arrow_forwardEstimate the uncertainty in the position of (a) a neutron moving at 5 x 10°m/s and (b) a 50 kg person moving at 2m/sarrow_forward
- An unknown moving ion is confined in a OD nanomaterial in which all three dimensions are equals to 5 nm. Estimate with what accuracy its velocity and energy can be measured (given mass of the ion is 4.8×10 26 kg)?arrow_forwardCalcúlate the uncertainty for momentum p, when the mass of the object is 15.0 (+-) 0.2kg with a velocity of 7.0 (+-) 0.5m/s. What is the uncertainty percentage of the momentum?arrow_forward(ii) The longest wavelength of light emitted by hydrogen in the Balmer series is 2, = 725 nm. In light from a distant galaxy, this wavelength is measured to be 2, = 1358 nm. Find the speed at which the distant galaxy is receding from the earth. %3Darrow_forward
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