Physics, 14.12.2019 02:31 ComicSans10
The company where you work has obtained and stored five lasers in a supply room. you have been asked to determine the intensity of the electromagnetic radiation produced by each laser. the laser beams have uniform intensity distributions over their cross sections. the lasers are marked with specifications, but unfortunately different information is given for each laser. assume that the laser beams have uniform intensity distributions over their cross sections. part a laser a: power = 2.2 w ; diameter of cylindrical beam = 2.9 mm . calculate the intensity for the laser. part b laser b: amplitude of electric field = 440 v/m . calculate the intensity for the laser. part c laser c: amplitude of magnetic field = 8.2 × 10−6 t. calculate the intensity for the laser. part d laser d: diameter of cylindrical beam = 1.8 mm ; force on totally reflecting surface = 9.0 × 10−8 n. calculate the intensity for the laser. part e laser e: average energy density in beam = 3.0 × 10−7 j/m3. calculate the intensity for the laser. part f rank the lasers in order of decreasing intensity. rank from largest to smallest. to rank items as equivalent, overlap them. laser alaser blaser claser dlaser e smallestlargest
Answers: 3
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Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?
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Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
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The company where you work has obtained and stored five lasers in a supply room. you have been asked...
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