Imagine an alternate universe where the value of the Planck constant is 6.62607x10−36J·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? A buckyball with a mass of 1.2 x 10-21 g, 0.7 nm wide, moving at 11. m/s. An iceberg with a mass of 2.2 x 108 kg, 70. m wide, moving at 1.43 km/h. A mosquito with a mass of 1.1 mg, 8.2 mm long, moving at 1.2 m/s A bacterium with a mass of 5.0 pg, 9.0 µm long, moving at 1.00 µm/s.

Imagine an alternate universe where the value of the Planck constant is 6.62607x10−36J·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? A buckyball with a mass of 1.2 x 10-21 g, 0.7 nm wide, moving at 11. m/s. An iceberg with a mass of 2.2 x 108 kg, 70. m wide, moving at 1.43 km/h. A mosquito with a mass of 1.1 mg, 8.2 mm long, moving at 1.2 m/s A bacterium with a mass of 5.0 pg, 9.0 µm long, moving at 1.00 µm/s.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 156AP: In a supercollider at CERN, protons are accelerated to velocities of 0.25c. What are their...

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In a supercollider at CERN, protons are accelerated to velocities of 0.25c. What are their wavelengths at this speed? What are their kinetic energies? If a beam of protons were to gain its kinetic energy in only one pass through a potential difference, how high would this potential difference have to be? (Rest mass energy of a proton is E0=938 MeV).
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