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Physics, 21.06.2019 19:30
Describe the path of a ray that approaches a mirror parallel to the principal axis.
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Physics, 21.06.2019 22:40
Explain vector addition, triangle method and parallelogram method
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Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm
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Physics, 22.06.2019 10:30
Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.
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