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Physics, 21.08.2019 19:30 kaitlynpaigge
The military is proposing to use high-power laser as part of an anti-drone weapon. when it is used in the earth's atmosphere, the light's electric field could ionize the air (and waste power) if the electric field exceeds a peak magnitude of 3 x 10 v/m, so it's being designed with a peak electric field of 2.0 x 10 v/m. a) what average laser beam intensity will produce this magnitude of peak electric field b) at this intensity, what is the laser's power if it is focused into a circular beam of radius 0.5 cm? c) what force does this beam exert on a flat object that absorbs 100% of the incident light? note that pressure = force/area. d) how much energy is transferred to a flat object that absorbs 100% of the incident light, if the laser remains on the target for 1.0 s?
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The military is proposing to use high-power laser as part of an anti-drone weapon. when it is used i...
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