(a) During a certain day the outdoor temperature ranges between \(60^{\circ} \mathrm{F}\) and \(80^{\circ} \mathrm{F}\). What is the corresponding range in degrees Celsius and in kelvins?

(b) The filament temperature of an incandescent light bulb is about \(2800 \mathrm{~K}\). What is the corresponding temperature in degrees Celsius and in degrees Fahrenheit? (Assume only two significant digits in 2800 K.)