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ANEK [815]
3 years ago
13

A box-shaped wood stove has dimensions of 0.75 mx 1.2 m x 0.4 m, an

Physics
1 answer:
Tresset [83]3 years ago
3 0

Answer:

8.4 kW

Explanation:

Using the Stefan-Boltzmann law,

P = εAσT4

Where:  

P: Radiation Energy

ε: Emissivity of the Surface. Check emissivity table below of common materials.

A: Surface Area, in m^2.

σ: Stefan-Boltzmann Constant, σ=5.67 × 10-8 W/m2•K4

T:  Temperature

Plugging in values,

P = 0.85 x 3.328 x 5.67 x 10^(-8) x 205

P = 8383 W or 8.4 kW

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Before giving you the answer straight away, I’d like to make sure you understand each option.


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“He developed the three laws of motion."


This option is not only the incorrect answer, but it is an incorrect statement. Galileo did not develop the three laws of motion. Isaac Newton was the one to compiled the three laws of motion.


SECOND OPTION


“He was the first to systematically study force and motion."


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THIRD OPTION


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B ) He was the first to systematically study force and motion.



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