Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
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Chapter 40, Problem 12CQ
To determine
Whether light is a wave or a particle.
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Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10³ J's.
In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wa
objects would act like everyday objects, and be adequately described by classical mechanics?
object
quantum or classical?
A bacterium with a mass of 4.0 pg, 6.0 μm long, moving
at 7.00 µm/s.
O classical
A raindrop with a mass of 26.0 mg, 2.4 mm wide, moving
at 6.7 m/s.
A paper airplane with a mass of 4.0 g, 205. mm long,
moving at 2.0 m/s.
A human with a mass of 57. kg, 1.7 m high, moving at
2.6 m/s.
quantum
classical
O quantum
classical
O quantum
classical
O quantum
Consider an electron in an infinite potential well size of a=0.1 nm. What is the ground energy of the electron? What is the energy required to put the electron at the third energy level?Calculate the wavelength of the photon that would provide this required energy? (Planck’s constant =6.6x10-34 J.s, electron mass = 9,11x10-31 kg)
Chapter 40 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
Ch. 40.1 - Prob. 40.1QQCh. 40.2 - Prob. 40.2QQCh. 40.2 - Prob. 40.3QQCh. 40.2 - Prob. 40.4QQCh. 40.3 - Prob. 40.5QQCh. 40.5 - Prob. 40.6QQCh. 40.6 - Prob. 40.7QQCh. 40 - Prob. 1OQCh. 40 - Prob. 2OQCh. 40 - Prob. 3OQ
Ch. 40 - Prob. 4OQCh. 40 - Prob. 5OQCh. 40 - Prob. 6OQCh. 40 - Prob. 7OQCh. 40 - Prob. 8OQCh. 40 - Prob. 9OQCh. 40 - Prob. 10OQCh. 40 - Prob. 11OQCh. 40 - Prob. 12OQCh. 40 - Prob. 13OQCh. 40 - Prob. 14OQCh. 40 - Prob. 1CQCh. 40 - Prob. 2CQCh. 40 - Prob. 3CQCh. 40 - Prob. 4CQCh. 40 - Prob. 5CQCh. 40 - Prob. 6CQCh. 40 - Prob. 7CQCh. 40 - Prob. 8CQCh. 40 - Prob. 9CQCh. 40 - Prob. 10CQCh. 40 - Prob. 11CQCh. 40 - Prob. 12CQCh. 40 - Prob. 13CQCh. 40 - Prob. 14CQCh. 40 - Prob. 15CQCh. 40 - Prob. 16CQCh. 40 - Prob. 17CQCh. 40 - The temperature of an electric heating element is...Ch. 40 - Prob. 2PCh. 40 - Prob. 3PCh. 40 - Prob. 4PCh. 40 - Prob. 5PCh. 40 - Prob. 6PCh. 40 - Prob. 7PCh. 40 - Prob. 8PCh. 40 - Prob. 9PCh. 40 - Prob. 10PCh. 40 - Prob. 11PCh. 40 - Prob. 12PCh. 40 - Prob. 14PCh. 40 - Prob. 15PCh. 40 - Prob. 16PCh. 40 - Prob. 17PCh. 40 - Prob. 18PCh. 40 - Prob. 19PCh. 40 - Prob. 20PCh. 40 - Prob. 21PCh. 40 - Prob. 22PCh. 40 - Prob. 23PCh. 40 - Prob. 25PCh. 40 - Prob. 26PCh. 40 - Prob. 27PCh. 40 - Prob. 28PCh. 40 - Prob. 29PCh. 40 - Prob. 30PCh. 40 - Prob. 31PCh. 40 - Prob. 32PCh. 40 - Prob. 33PCh. 40 - Prob. 34PCh. 40 - Prob. 36PCh. 40 - Prob. 37PCh. 40 - Prob. 38PCh. 40 - Prob. 39PCh. 40 - Prob. 40PCh. 40 - Prob. 41PCh. 40 - Prob. 42PCh. 40 - Prob. 43PCh. 40 - Prob. 45PCh. 40 - Prob. 46PCh. 40 - Prob. 47PCh. 40 - Prob. 48PCh. 40 - Prob. 49PCh. 40 - Prob. 50PCh. 40 - Prob. 51PCh. 40 - Prob. 52PCh. 40 - Prob. 53PCh. 40 - Prob. 54PCh. 40 - Prob. 55PCh. 40 - Prob. 56PCh. 40 - Prob. 57PCh. 40 - Prob. 58PCh. 40 - Prob. 59PCh. 40 - Prob. 60APCh. 40 - Prob. 61APCh. 40 - Prob. 62APCh. 40 - Prob. 63APCh. 40 - Prob. 64APCh. 40 - Prob. 65APCh. 40 - Prob. 66APCh. 40 - Prob. 67APCh. 40 - Prob. 68APCh. 40 - Prob. 69APCh. 40 - Prob. 70APCh. 40 - Prob. 71APCh. 40 - Prob. 72CPCh. 40 - Prob. 73CPCh. 40 - Prob. 74CPCh. 40 - Prob. 75CPCh. 40 - Prob. 76CP
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- A) What is the approximate wavelength emitted from helium represented by the bright yellow emission line below? What is it's frequency in HZ and energy in eV? (1 eV= 1.6 x 10-19 joules). B) If the excited helium electron that emits a yellow photon in this line starts with a potential energy of 8 eV, what is the potential energy of the electron afterwards? Assume that the emission of a yellow photon is allowed by the laws of quantum mechanics. Also don't worry about the other electron.arrow_forwardUsing your knowledge of these equations: Energy unit conversions between electron volts (eV) and joules, (J); Einstein's photon energy equation; Compton's momentum equation; de Broglie's wavelength equation Quantitatively compare a 3.1 eV photon and a 3.1 eV electron by completing the following data table (attached). For any required calculation, be sure to include both your calculation and your answer. Assume: ℎ=6.63 × 10−34?•?; ?=3.00 × 108?/?; ??=9.11 × 10−31?? I attached my answers but am unsure. Especially about the electron speed, wavelengeth and momentum.arrow_forwardA photon has wavelength of (λ = 531 pm). Does this photon have enough energy to ionize a hydrogen atom? Show DETAILED calculations to support your answer in the following format. It's a must for me! What are you solving for? What should be the units of your final answer? What information are you given? What information do you need? How will you connect the information you have and the information you need to solve this problem? (Provide a unit plan) Solve the problem. Be sure to show all units and write clearly. Does your answer make sense? How do you know? Thank youarrow_forward
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