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Physics, 22.06.2019 04:10
An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45ā. what percentage of the initial intensity is transmitted by the system?
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Physics, 22.06.2019 16:30
Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
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Physics, 23.06.2019 07:00
What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s
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