Review. An office worker uses an immersion heater to warm 250 g of water in a light, covered, insulated cup from 20.0^∘ C to 100^∘ C in 4.00 min . The heater is a Nichrome resistance wire connected to a 120-V power supply. Assume the wire is at 100^∘ C throughout the 4.00 -min time interval. (a) Specify a relationship between a diameter and a length that the wire can have. (b) Can it be made from less than 0.500 cm^3 of Nichrome? | Numerade