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- 1.1) A star has a radius of three times the Sun's radius, and an average number density of ions a factor of 1.75 higher than that of the Sun. How much time does it take on average for photons to travel across this star compared with the Sun?The pressure of a photon gas is P=-aT. Determine the free energy of the photon gas. Assume a is the constant. Answer Choices: 3. F =- -aVT a. aVT* b. F=- 16 с. F-Gar") d. F=-Q4 // Barium has a crystalline structure BCC, atomic radius of (0.217nm) and atomic weight A = 137.33amu Calculate the theoretical density of barium.
- Please help me to properly solve this and show the solutions properly. Thank youIron has a magnetic moment of 2.22 Bohr magnetons per atom and a density of 7.87-103 kg.m-3. Calculate the expected magnetization of iron at 0 K and describe any assumptions that you have made. How would you expect this magnetization of iron to vary as temperature is increased. How does the number of Bohr magnetons per atom change from 0 K to 300 K. Why does a piece of iron typically not exhibit high magnetization at room temperature (unless it has been "magnetized")?problem_set No. 7.pdf E Final Project Autonomy.pdf problem_set No._7.pdf C:/Users/mande/Downloads/problem_set_No._7.pdf A Read aloud V Draw v F Highlight O Erase 21. The kinetic energy of an electron accelerated in an x-ray tube is 100 keV. Assuming it is nonrelativistic, what is its wavelength? 22. Suppose the velocity of an electron in an atom is known to an accuracy of 2.0 × 10° m/s (reasonably accurate compared with orbital velocíties). What is the electron's minimum uncertainty in position, and how does this compare with the approximate 0.1-nm size of the atom? 23. The decay energy of a short-lived nuclear excited state has an uncertainty of 2.0 eV due to its short lifetime. What is the smallest lifetime it can have? 24. (a) What is the surface temperature of Betelgeuse, a red giant star in the constellation Orion, which radiates with a peak wavelength of about 970 nm? (b) Rigel, a bluish-white star in Orion, radiates with a peak wavelength of 145 nm. Find the temperature of…
- A photon has a frequency 4873935 Hz. Calculate its energy in Joules. Answer in Scientific Notation. Round your answer to 2 significant figures.Give a statement of Heisenberg uncertainty principle and out line fonr examples where it is demonstrated in everyday life.the n= tate. vels for Hydrogen. rbed photon? + tion from the thi 4. A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts. a. What is the resistance of the light bulbs in ohms? b. What is the power consumed by the light bulb in watts? C. If two identical slide projectors are connected in parallel across the same 120 Volt source, what is the total current drawn from the source?
- Answer= 11. Calculate the uncertainty in the speed of a ball of mass 500 g that is known to be within 1.0 um of a certain point on a bat. 12. The Planck distribution gives the energy in the wavelength range da at the wavelength A. Calculate the energy density in the range fro 650 nm to 655 nm inside a cavity of volume 100cm³" when the temperatura in 25 CA Blackbody radiator emits blue light with a wavelength of 475 nanometres (nm).a) Describe what a “Blackbody radiator” is.b) How much energy is being produced by each blue light photon emitted (in units of joules AND electron-volts)?Define The Quantum Critical Magnetic Field. Explain the concept.