A person consumes about 2300 Cal a day. 1 Cal = 4186 J, and 1 kWh...
A person consumes about 2300 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal.
Part A
What is this energy in joules?
Express your answer using two significant figures.
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| Q
Q = |
nothing |
J |
SubmitRequest Answer
Part B
What is this energy in kilowatt-hours?
Express your answer using two significant figures.
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||||
| Q
Q = |
nothing |
kWh |
SubmitRequest Answer
Part C
If a power company charges about 10 ¢ per kilowatt-hour, how much would this energy cost per day if the person bought it from the power company?
Express your answer using two significant figures.
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| Cost = |
nothing |
$ per day |
SubmitRequest Answer
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A person consumes about 2300 Cal a day. 1 Cal = 4186 J, and 1
kWh...
Problem 14.04 A person consumes about 2900 Cal a day. 1 Cal = 4186 J, and...
Problem 14.04 A person consumes about 2900 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. Part A What is this energy in joules? Express your answer using two significant figures. Q = m J SubmitMy AnswersGive Up Part B What is this energy in kilowatt-hours? Express your answer using two significant figures. Q = m kWh SubmitMy AnswersGive Up Part C If a power company charges about 14 ¢ per kilowatt-hour, how much would...
A person consumes about 2900Cal a day. 1 Cal = 4186 J , and 1 kWh...
A person consumes about 2900Cal a day. 1 Cal = 4186 J , and 1 kWh = 860 Cal . A) What is the energy in joules? Q=? J B) What is this energy in kilowatt-hours? Q=? kWh C) If a power company charges about 14
A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh...
A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. A)What is this energy in joules? B)What is this energy in kilowatt-hours? C)If a power company charges about 13 ¢ per kilowatt-hour, how much would this energy cost per day if the person bought it from the power company?
A person consumes about 2200Cala day.1 Cal = 4186 J, and 1 kWh = 860 Cal....
A person consumes about 2200Cala day.1 Cal = 4186 J, and 1 kWh = 860 Cal. What is this energy in joules?. What is this energy in kilowatt-hours?
14.04 A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1...
14.04 A person consumes about 2600 Cal a day. 1 Cal = 4186 J, and 1 kWh = 860 Cal. A) What is this energy in joules? B)What is this energy in kilowatt-hours? C)If a power company charges about 13 ¢ per kilowatt-hour, how much would this energy cost per day if the person bought it from the power company?
A person consumes about 2400Cala day.1 Cal = 4186 J, and 1 kWh = 860 Cal....
A person consumes about 2400Cala day.1 Cal = 4186 J, and 1 kWh = 860 Cal. What is the energy in Joules?
3. An average active person consumes about 2500 Cal (1 Cal =1000 cal) per day. (a) What...
3. An average active person consumes about 2500 Cal (1 Cal =1000 cal) per day. (a) What is this in joules? (b) What is this in kilowatt-hours? (c) If your power company charges about 30 ¢ per kilowatt-hour, how much would your energy cost per day if you bought it from the power company? Just for fun… Do you think you could you feed yourself (adequately) on this much money per day? show work!!
1. Let’s say that an average person consumes about 2000 calories per day over their entire...
1. Let’s say that an average person consumes about 2000 calories per day over their entire lifetime. A calorie (Cal) is a unit of energy and one Cal equals 4186 ? (Joules). For someone who lives to a ripe age of 100 years, how much energy, in J will they require? What is their average power output in ?/? = ????? (abbreviated ?)? b) Given the total energy a person requires that you calculated above, use Einstein’s equation to determine...
Suppose that a person eats a diet of 2400 Calories per day 1. Convert this energy...
Suppose that a person eats a diet of 2400 Calories per day 1. Convert this energy into joules. Express your answer using four significant figures. 2.Convert this energy into kilojoules. Express your answer using four significant figures 3. Convert this energy into kilowatt-hours. Express your answer using four significant figures.
Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant...
Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant figures) 21 J to calories (cal). (Express your answer using two significant figures)
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