Using the right hand rule, what do the three numbered vectors represent in the diagram below? .
2
3
T
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J F Melero (José Fernando)
OA. 1) force; 2) electric current; 3) magnetic field
OB.
1) electric current; 2) magnetic field; 3) force
O C.
1) magnetic field; 2) force; 3) electric current
D.
1) electric current 2) force; 3) magnetic field
E.
1) magnetic field; 2) electric current; 3) force

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)