Aheater is placed in 2kg of water. what temperature raise is produced if the heater is on for 200s?

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

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Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays