05:20The Heisenberg Uncertainty Principle Part 2: Energy/Time and Quantum FluctuationProfessor Dave Explains419views1rank
06:07The Heisenberg Uncertainty Principle Part 1: Position/Momentum and Schrödinger's CatProfessor Dave Explains465views
Multiple ChoiceTo what uncertainty (in m) can the position of a baseball traveling at 51.0 m/s be measured if the uncertainty of its speed is 0.12%? The mass of the baseball is 150 g.712views3comments
Multiple ChoiceA proton with a mass of 1.67 x 10-27 kg traveling at 4.7 x 105 m/s has an uncertainty in its velocity of 1.77 x 105 m/s. Determine its uncertainty in position.846views4comments
Multiple ChoiceWhich of the following statements about the Heisenberg uncertainty principle is false?522views
Textbook QuestionUsing Heisenberg's uncertainty principle, calculate the uncertainty in the position of (b) a proton moving at a speed of 15.00 { 0.012 * 104 m/s. (The mass of a proton is given in the table of fundamental constants in the inside cover of the text.)579views
Textbook QuestionUsing Heisenberg's uncertainty principle, calculate the uncertainty in the position of (a) a 1.50-mg mosquito moving at a speed of 1.40 m/s if the speed is known to within {0.01 m/s;1426views
Textbook QuestionCalculate the uncertainty in the position of (a) an electron moving at a speed of 13.00 { 0.012 * 105 m/s894views1rank
Textbook QuestionAn electron has an uncertainty in its position of 552 pm. What is the uncertainty in its velocity?2541views
Textbook QuestionAn electron traveling at 3.7 * 105 m>s has an uncertainty in its velocity of 1.88 * 105 m/s. What is the uncertainty in its position?2291views1rank1comments
Textbook QuestionUse the Heisenberg uncertainty principle to calculate the uncertainty in meters in the position of a honeybee weighing 0.68 g and traveling at a velocity of 0.85 m/s. Assume that the uncertainty in the velocity is 0.1 m/s.660views
Textbook QuestionThe mass of a helium atom is 4.0026 amu, and its average velocity at 25 °C is 1.36 * 103 m/s. What is the uncertainty in meters in the position of a helium atom if the uncertainty in its velocity is 1%?1664views
Textbook QuestionWhat is the Heisenberg uncertainty principle, and how does it affect our description of atomic structure?678views
Textbook QuestionWhy do we have to use an arbitrary value such as 90% to determine the spatial limitations of an orbital?400views
Textbook QuestionAs discussed in the A Closer Look box on 'Measurement and the Uncertainty Principle,' the essence of the uncertainty principle is that we can't make a measurement without disturbing the system that we are measuring. (a) Why can't we measure the position of a subatomic particle without disturbing it?474views
Textbook QuestionConsider the discussion of radial probability functions in 'A Closer Look' in Section 6.6. (a) What is the difference between the probability density as a function of r and the radial probability function as a function of r ?383views
Multiple ChoiceAn electron with a mass of 9.11 x 10-31 kg has an uncertainty in its position of 630 pm. What is the uncertainty in its velocity?24views