A 7000-W toaster is plugged into a 110-V outlet. When turned on, the current flowing through the 6.00-m strand of nichrome wire heats the wire and toasts the bread. As the designer of the toaster, what radius do you choose for the nichrome wire? (Assume the temperature of the wire does not affect the resistance. ρnichrome = 1.00 x 10–6 Ω m.)