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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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How efficient are the small and large scale solar-power systems used in individual homes and industrial settings? What is the en
Leviafan [203]

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\color{Blue}\huge\boxed{Answer}

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3 years ago
The iron nail’s mass is 16 grams and its temperature drops 650 C when dropped into the water. How much heat energy did the iron
Mice21 [21]

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Explanation:

The thermal energy transferred by a substance to another substance is given by the equation

Q=mC\Delta T

where

m is the mass of the substance

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\Delta T is its change in temperature

For the iron nail in this problem, we have:

m = 16 g

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\Delta T = -650^{\circ}C

So, the amount of heat energy given off by the nail is

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where the negative sign indicates that the heat is given off.

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

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3 years ago
A raft with the area A , thickness= h and the mass 600 kg, Floats in still water with 7 cm
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<span>ρwAd1g = Mg</span>

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This means that Bubba’s mass is 120 kg.

7 0
3 years ago
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