Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10° J.s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? classical An eyelash mite with a mass of 13.4 ug, 340 um wide, moving at 21. pm/s. O quantum classical A turtle with a mass of 450. g, 27. cm long, moving at 2.4 cm/s. O quantum O classical A human with a mass of 89. kg, 2.1 m high, moving at 2.5 m/s. O quantum O classical A raindrop with a mass of 8.0 mg, 7.2 mm wide, moving at 7.5 m/s. O quantum

Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10° J.s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? classical An eyelash mite with a mass of 13.4 ug, 340 um wide, moving at 21. pm/s. O quantum classical A turtle with a mass of 450. g, 27. cm long, moving at 2.4 cm/s. O quantum O classical A human with a mass of 89. kg, 2.1 m high, moving at 2.5 m/s. O quantum O classical A raindrop with a mass of 8.0 mg, 7.2 mm wide, moving at 7.5 m/s. O quantum

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

Section: Chapter Questions

Problem 58P: An electron in a box is in the ground state with energy 2.0 eV. (a) Find the width of the box. (b)...

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Imagine an alternate universe where the value of the Planck constant is 6.62607 x 10 "J-s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? classical A raindrop with a mass of 2.0 mg, 6.7 mm wide, moving at 6.9 m/s. O quantum O classical A turtle with a mass of 530. g, 27. cm long, moving at 2.2 cm/s. O quantum O classical A buckyball with a mass of 1.2 x 1021 g, 0.7 nm wide, moving at 38. m/s. O quantum O classical A human with a mass of 86. kg, 2.5 m high, moving at 3.0 m/s. O quantum
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According to quantum mechanics all objects have a wavelength related to their momentum. What is the de Broglie wavelength of an electron that has been accelerated from rest through a potential of 2500V? Select one: a. 0.346 angstroms. b. 5.63 x 10-14 m. c. 0.245 angstroms. d. 0.173 angstroms.
O https://www-awu.aleks.com/aiek ROEqmvAnknhdcHJmAch Blackbody b Answered: Decide. Convert grams Calc... * Convert hertz (Hz] t. G VidQuiz: Trans. In B... Syllabus: 1A Blake F O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Understanding the meaning of a de Broglie wavelength Imagine an alternate universe where the value of the Planck constant is 6.62607 J·s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? A car with a mass of 1100. kg, 4.0 m long, moving at O classical 112.0 km/h. O quantum A grain of sand with a mass of 205 mg, 795. um wide, moving at 6.00 mm/s. O classical O quantum An eyelash mite with a mass of 13.6 ug, 205 um wide, moving at 29. um/s. O classical O quantum An atom with a mass of 1.0 x 10-25 kg, 56. pm wide, moving at 222. m/s. O classical O quantum Explanation Check 72022 McGraw Hill…
A person weighing 77 kg jogs at 1.5 m/s. a) Calculate the momentum and wavelength of this person. b) What is the uncertainty in determining his position at any given instant if we can measure his momentum to +- 0.05%? c) Predict the changes that would take place in this problem if the Planck constant were 1 J s.
2. Solve the de Broglie wavelength of: a. a tennis ball of mass 57 g traveling 25 m/s b. an electron with kinetic energy 50 eV. 3. Find the de Broglie wavelength of a 1.00-MeV proton. Is a relativistic calculation needed?
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