Electrons striking the back of a TV screen travel at a speed of about 7.2 x 107 m/s. What is their de Broglie wavelength? M = 9.11 x 10-31 kg Characteristic X-rays emitted by molybdenum have a wavelength of .087 nm. What is the energy of one of these x-ray photons?

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hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?