When iron is exposed to oxygen it rusts or oxidizes. which of these represents the balanced equation for this chemical change? a) fe + o → feo b) feo → fe + o c) fe + o2 → fe2o3 d) 4fe + 3o2 → 2fe2o3

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge