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Physics, 09.10.2019 17:10, NeonPlaySword
The eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are struck by photons of a wavelength of 850 nm. if a total energy of 3.15 × 10−14 j is required to trip the signal, what is the minimum number of photons that must strike the receptor?
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Physics, 22.06.2019 12:00, drivinghydra
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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The eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are...
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