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11A). A sample of Uranium started with equal amounts of U235 and U238 (50% U235 and 50% 'U238 by count). After 1 billion years, what percentage is U235? You can use appendix B for half-lives. 11B). Photons with energy of 2.35 eV are used in a photoelectric effect experiment. The binding energy of the material used is 1.85 eV. What is the de Broglie wavelength of the ejected electrons? 11C). A spaceship has a proper length of 10.0m and is observed to travel at 0.855c relative to earth. a) What is the length of the spaceship as observed by someone on earth? b) If the spaceship has a mass of 1255 kg, what is the kinetic energy of the spaceship?

11A). A sample of Uranium started with equal amounts of U235 and U238 (50% U235 and 50% 'U238 by count). After 1 billion years, what percentage is U235? You can use appendix B for half-lives. 11B). Photons with energy of 2.35 eV are used in a photoelectric effect experiment. The binding energy of the material used is 1.85 eV. What is the de Broglie wavelength of the ejected electrons? 11C). A spaceship has a proper length of 10.0m and is observed to travel at 0.855c relative to earth. a) What is the length of the spaceship as observed by someone on earth? b) If the spaceship has a mass of 1255 kg, what is the kinetic energy of the spaceship?

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11A). A sample of Uranium started with equal amounts of U235 and U238 (50% U235 and 50% U238 by count). After 1 billion years, what percentage is U235? You can use appendix B for half-lives. 11B). Photons with energy of 2.35 eV are used in a photoelectric effect experiment. The binding energy of the material used is 1.85 eV. What is the de Broglie wavelength of the ejected electrons? 11C). A spaceship has a proper length of 10.0m and is observed to travel at 0.855c relative to earth. a) What is the length of the spaceship as observed by someone on earth? b) If the spaceship has a mass of 1255 kg, what is the kinetic energy of the spaceship?
Transcribed Image Text:11A). A sample of Uranium started with equal amounts of U235 and U238 (50% U235 and 50% U238 by count). After 1 billion years, what percentage is U235? You can use appendix B for half-lives. 11B). Photons with energy of 2.35 eV are used in a photoelectric effect experiment. The binding energy of the material used is 1.85 eV. What is the de Broglie wavelength of the ejected electrons? 11C). A spaceship has a proper length of 10.0m and is observed to travel at 0.855c relative to earth. a) What is the length of the spaceship as observed by someone on earth? b) If the spaceship has a mass of 1255 kg, what is the kinetic energy of the spaceship?
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