Problem 16 Suppose that a person eats a diet of 2381 Calories per day. Part A Co

Question

Problem 16

Suppose that a person eats a diet of 2381 Calories per day.

Part A

Convert this energy into J.

Express your answer using four significant figures.

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Part B

Convert this energy into kJ.

Express your answer using four significant figures.

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Part C

Convert this energy into kWh.

Express your answer using four significant figures.

Problem 16

Suppose that a person eats a diet of 2381 Calories per day.

Part A

Convert this energy into J.

Express your answer using four significant figures.

  J  

SubmitMy AnswersGive Up

Incorrect; One attempt remaining; Try Again

Part B

Convert this energy into kJ.

Express your answer using four significant figures.

  kJ  

SubmitMy AnswersGive Up

Part C

Convert this energy into kWh.

Express your answer using four significant figures.

  kWh  

Explanation / Answer

Part A:
2281 cal / day * 4.184 J/cal = 9962.104 = 9962 J/day
Part B:
9962 J/day * 1 kJ/1000 J = 9.962 kJ/day
Part C:
9.962 kJ/day * 0.000278 kWh / kJ = 0.002767222 kWh /day = 0.002767 kWh /day

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