College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Which statement correctly describes how attractions that hold particles break?
- Attractions occur due to gravitational forces. When particles have low enough energy, these forces can no longer keep particles together.
- Attractions occur due to gravitational forces. When particles move fast enough, these forces can no longer keep particles together.
- Attractions occur due to electrostatic forces. When particles have low enough energy, these forces can no longer keep particles together.
- Attractions occur due to electrostatic forces. When particles move fast enough, these forces can no longer keep particles together.
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- 3.0 eV photons excite atoms in a gas from their ground state to the n = 3 excited state. The atoms are then observed emitting 2.0 eV photons. Usingwhat you learned in the table above, what other emitted photon energies would be observed?A. 3.0 eV and 5.0 eV B. 3.0 eV and 1.0 eV C. 1.0 eV and 4.0 eVD. 3.0 eV only E. 1.0 eV onlyarrow_forwardA certain X-ray machine generates X-rays from a beam of electrons accelerated from zero to 99.9999999 per cent the speed of light in a long linear accelerator of length 3.2 km. The electrons are generated in pulses of duration ∆t = 100 fs. The generated x-rays from the target are also short pulses (λ = 0.15 nm). Determine the energy of a single x-ray photon in the beam. a.) 8.27 eV b.) 8.27 J c.) 8.27 keV d.) none of these.arrow_forwardAn electron within the hydrogen atom is excited from n1 to n4. The electron then "falls" back to ni in two steps (n4 -> n2, n2 -> n1). Which of the following statements is true about the light emitted during this process? One photons will be emitted. Two photons will be emitted. O Three photons will be emitted. Four photons will be emitted.arrow_forward
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