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Learning Goal: To practice Problem-Solving Strategy 25.1 Power and Energy in Circuits. A device for heating a cup of water in a car connects to the car's battery, which has an emf & = 10.0 V and an internal resistance rint = 0.08 2. The heating element that is immersed in the cup of water is a resistive coil with resistance R. David wants to experiment with the device, so he connects an ammeter into the circuit and measures 10.5 A when the device is connected to the car's battery. From this, he calculates the time to boil a cup of water using the device. If the energy required is 100 kJ, how long does it take to boil a cup of water? EXECUTE the solution as follows Part C Neglecting heat losses in the system, what is the amount of time t will it take to boil the water in the cup? Express your answer in minutes using three significant figures. ► View Available Hint(s) t = 15. ΑΣΦ B ? minutes

Learning Goal: To practice Problem-Solving Strategy 25.1 Power and Energy in Circuits. A device for heating a cup of water in a car connects to the car's battery, which has an emf & = 10.0 V and an internal resistance rint = 0.08 2. The heating element that is immersed in the cup of water is a resistive coil with resistance R. David wants to experiment with the device, so he connects an ammeter into the circuit and measures 10.5 A when the device is connected to the car's battery. From this, he calculates the time to boil a cup of water using the device. If the energy required is 100 kJ, how long does it take to boil a cup of water? EXECUTE the solution as follows Part C Neglecting heat losses in the system, what is the amount of time t will it take to boil the water in the cup? Express your answer in minutes using three significant figures. ► View Available Hint(s) t = 15. ΑΣΦ B ? minutes

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Learning Goal: To practice Problem-Solving Strategy 25.1 Power and Energy in Circuits. A device for heating a cup of water in a car connects to the car's battery, which has an emf & = 10.0 V and an internal resistance rint = 0.08 2. The heating element that is immersed in the cup of water is a resistive coil with resistance R. David wants to experiment with the device, so he connects an ammeter into the circuit and measures 10.5 A when the device is connected to the car's battery. From this, he calculates the time to boil a cup of water using the device. If the energy required is 100 kJ, how long does it take to boil a cup of water?
Transcribed Image Text:Learning Goal: To practice Problem-Solving Strategy 25.1 Power and Energy in Circuits. A device for heating a cup of water in a car connects to the car's battery, which has an emf & = 10.0 V and an internal resistance rint = 0.08 2. The heating element that is immersed in the cup of water is a resistive coil with resistance R. David wants to experiment with the device, so he connects an ammeter into the circuit and measures 10.5 A when the device is connected to the car's battery. From this, he calculates the time to boil a cup of water using the device. If the energy required is 100 kJ, how long does it take to boil a cup of water?
EXECUTE the solution as follows Part C Neglecting heat losses in the system, what is the amount of time t will it take to boil the water in the cup? Express your answer in minutes using three significant figures. ► View Available Hint(s) t = 15. ΑΣΦ B ? minutes
Transcribed Image Text:EXECUTE the solution as follows Part C Neglecting heat losses in the system, what is the amount of time t will it take to boil the water in the cup? Express your answer in minutes using three significant figures. ► View Available Hint(s) t = 15. ΑΣΦ B ? minutes
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