What is the expected charge to mass ratio for an electron based on the unknown values for the charge and mass of an electron?
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1. What is the expected charge to mass ratio for an electron based on the unknown values for the charge and mass of an electron?
2. Comment on the accuracy of your results. Does your results agree with the expected charge to mass ratio for an electron
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- The image represents the gaps between allowed energy levels for electrons. Which model best describes this phenomenon? A. the wave model because electrons orbit the atom's nucleus in a continuous way B. the particle model because electrons are particles C. the wave model because the arrows show that the energy transfer is continuous D. the particle model because the arrows represent discrete particle-like jumpsIn a CRT, electrons leave the filament as the current through the filament heats it upt. An anode then attracts the free electrons. According to Newton's second law of motion, the beam of electrons that emerges from the anode aperture will do this. a. Decelerate until they reach the fluorescent screen. b. Continue accelerating toward the flourescent screen. c. Spontaneoulsy decay into photons. d. Move at a constant speed toward the fluorescent screen.2. Assume now that an electron is not a point but a sphere of radius R over whose surface the electron charge is uniformly distributed. a) Find the total enery associated with the electric field built up by the "electron sphere". b) If you equate the total electric energy you get in a) with the rest mass energy of electron Eo mc², Calculate the value of R. = R is often called the classical radius of the electron.
- Please explain and give the correct answer7. Determine the velocity of the electron in a positronium atom which is shown in the figure (figure is attached). Assume the radius of the positronium atom is 2 x 5.3 x 10 cm a) What is the total angular momentum about the center of the positronium atom in Problem 7? b) What is the force on the electron due to the positron? (Give both magnitude and direction.) c) What is the electric potential energy of the positronium atom?4. The energy of the atom is in part determined by the electrical potential energy of the electron interacting with the proton nucleus, and when the electron is close to the nucleus it is very tightly bound. That's why the energy is negative, and larger in magnitude the smaller n. What does this tell you about the size of the atom for large n? Explain your reasoning.
- What is the essential difference between gamma rays and green light? A. Gamma rays have an electric field, green light do not. B. There is no essential difference in the nature of gamma rays and green light other than he difference in frequency and wavelength. C. Greenlight undergoes refraction, gamma rays I do not D. Gamma rays are a form of radiation, green light is not E. Greenlight is the beam of photons, gamma rays are not photonsB71. How do electrons move? 2. How to create continuous flow of electron? 3. Draw the diagram and explain how a dry cell (1.5-volt battery) produces voltage. 4. How does a Van de Graaff Generator works? 5. Explain why “Danger! High Current!” is technically more precise than the common notion of the usual statement “Danger! High Voltage!” posted on different voltage sources.