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Assoli18 [71]
3 years ago
9

The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that in his advanced teenaged year

s his hands constantly feel chilled. As he is a cool physics student, the Iceberg Kid quickly calculates the resistance of the resistor needed to warm his hands. Given that 195 J of thermal energy is generated by the resistor during 9.81 s of operation while connected to a 12.0 V battery, find the correct value of this resistance (and avoid a cold, cold fate).
Physics
1 answer:
Mademuasel [1]3 years ago
8 0

Answer:

7.24 Ω

Explanation:

Power = energy / time = 195 J / 9.81 = 19.88 W

and power = V² / R

R  resistance = 12 V²  / 19.88 W  = 7.24 Ω

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