A stream of electrons, each with a kinetic energy of 450 eV, is sent t

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A stream of electrons, each with a kinetic energy of 450 eV, is sent through a potential-free region toward a potential barrier of "height" 500 eV and thickness 0.300 nm. The stream consists of 1 × 1015 electrons. How many should tunnel through the barrier? Pick the closest answer. The electron mass is 9.10938 × 10-31 kg. 3 × 103 1 × 106 4 × 105 9 × 105 7 × 104 6 × 104 7 × 106 8 × 107 4 × 107 8 × 109

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A stream of electrons, each with a kinetic energy of 450 eV, is sent through a potential-free region toward a potential barrier of "height" 500 eV and thickness 0.300 nm. The stream consists of 1 × 1015 electrons. How many should tunnel through the barrier? Pick the closest answer. The electron mass is 9.10938 × 10-31 kg. 3 × 103 1 × 106 4 × 105 9 × 105 7 × 104 6 × 104 7 × 106 8 × 107 4 × 107 8 × 109