Document1 – Word
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?
quantum or classical?
A buckyball with a mass of 1.2 x 10-21 g, 0.7 nm wide,
moving at 21. m/s.
A mosquito with a mass of 1.9 mg, 8.7 mm long, moving
at 3.0 m/s.
A turtle with a mass of 700. g, 23. cm long, moving at 3.0
An airplane with a mass of 1.87 x 10* kg, 16.0 m long,
moving at 800. km/h.
Screen 1 of 1