n an effort to stay awake for an all-night study ession, a student makes a cup of coffee by first lacing a 200 W electric immersion heater in 400 kg of water.

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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
0.400 kg of water.
How much heat must be added to the water to raise its temperature from 21.0°C to 77.0°C?
Express your answer in joules.
IVE ΑΣΦ
Q =
Submit
Part B
t =
Request Answer
Submit
How much time is required? Assume that all of the heater's power goes into heating the water.
Express your answer in seconds.
OF
15. ΑΣΦ
?
Request Answer
J
?
S
Re
Transcribed Image Text: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 0.400 kg of water. How much heat must be added to the water to raise its temperature from 21.0°C to 77.0°C? Express your answer in joules. IVE ΑΣΦ Q = Submit Part B t = Request Answer Submit How much time is required? Assume that all of the heater's power goes into heating the water. Express your answer in seconds. OF 15. ΑΣΦ ? Request Answer J ? S Re
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