Find formulas for the current i Subscript Upper L and the voltage v Subscript Upper C for the circuit described by the equation below, assuming Upper R 1equals0.4 ohm, Upper R 2equals0.4 ohm, Cequals0.25 farad, and Lequals0.2 henry. The initial current is 0 amp, and the initial voltage is 20 volts.

If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27°c (81°f), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?