In an effort to stay awake for an all-night study session, a studentmakes a cup of coffee by first placing a 200 W electric immersionheater in 0.320 kg of water. (a) How much heat must be added to the waterto raise its temperature from 20.0°C to 80.0°C? (b) How much time is required?Assume that all of the heater’s power goes into heating the water.

In an effort to stay awake for an all-night study session, a studentmakes a cup of coffee by first placing a 200 W electric immersionheater in 0.320 kg of water. (a) How much heat must be added to the waterto raise its temperature from 20.0°C to 80.0°C? (b) How much time is required?Assume that all of the heater’s power goes into heating the water.

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Question

In an effort to stay awake for an all-night study session, a student
makes a cup of coffee by first placing a 200 W electric immersion
heater in 0.320 kg of water. (a) How much heat must be added to the water
to raise its temperature from 20.0°C to 80.0°C? (b) How much time is required?
Assume that all of the heater’s power goes into heating the water.

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