2. A 1.00 kg weight is traveling at a constant velocity of 10.0 ms, in a cubic room 3.00 m on an edge. Determine the sum of the squares of its three quantum numbers.

If n = 5, what is the maximum allowed value for {? 1 6. C 9. + +/- х 100 2. LO 4.

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? Which objects would act like everyday objects, and be adequately described by classical mechanics? object An airplane with a mass of 1.90 x 104 kg, 13.0 m long, moving at 2200. km/h. An alpha particle with a mass of 6.6 x 10-27 kg, 8.0 x 10 15 m wide, moving at 13. km/s. A turtle with a mass of 790. g, 30. cm long, moving at 1.8 cm/s. A mosquito with at 3.5 m/s. mass of 1.0 mg, 9.9 mm long, moving quantum or classical? O classical O quantum O classical O quantum O classical O quantum O classical O quantum X

Be sure to answer all parts. How fast must a 145.9−g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with λ = 89.0 pm? Enter your answer in scientific notation.