At a particular location, the Earth's magnetic field has a magnitude of 5.0 × 10^{-5} T. At that location, Jo is looking out her apartment window, which has an area of 0.8 m^2. The net magnetic flux, from the Earth's field, through the window is 2.0 × 10^{-5} T m^2. What is the angle between the normal (perpendicular) to the window and the Earth's magnetic field?

Acertain half-reaction has a standard reduction potential e_red^0 = -0.94 v. an engineer proposes using this half-reaction at the cathode of a galvanic cell that e must provide at least 1.00 v of electrical power. the cell will operate under standard conditions. a. is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? b. is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have?