How much time is spend in the field during the trip

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Q. A fan at a rock concert is 35 m from the stage, where the sound intensity level is 125 dB. Her eardrums have a diameter of 8.07 mm. How much energy is transferred to each eardrum in one second? (Distance from the speaker to the edge of the stage is 1 m.)

Q. A charged particle moves into a region of uniform magnetic field, goes through half a circle, and then exits that region.The particle is either a proton or an electron (you must decidewhich). It spends 107 ns in the region. (a) What is the magnitude of ? (b) If the particle is sent back throughthe magnetic field (along the same initial path) but with 3.53 times its previous kinetic energy, how much time does it spend in the field during this trip?

Reference no: EM1346899

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