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A high-energy pulsed laser emits a 1.0-ns-long pulse of average power 3.4×10^11 W . The beam is 1.2×10^-3m in radius. Determine the rms value of the electric field. (in V/m)
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At a playground, a toddler climbs on his bike starts to pedal away from his dad as fast as he can, at 12.6 km/h, towards a busy road that is 74.2 m away. At Δt=3.44 seconds later, his dad glances up from his phone and no ...
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