Question

Suppose a large animal has 2.8 cm thick fur with a surface area of 1.6 m^2. Substance thermal conductivity k (j/s x m x Celsius) Glass Wool 0.042 Wool 0.04 Glass 0.84 Human Body 0.2 Ceramic 0.84 Wood 0.08 - 0.16 Air 0.023 Fatty Tissue 0.2 Styrofoam 0.010 part a) What is the rate of heat conduction, in watts, through the fur of the animal? Assume that the animal's skin temperature is 32.0°C, that the air temperature is -5.00°C, and that fur has the same thermal conductivity as air. part b) What food intake, in kilocalories, will the animal need in one day to replace this heat transfer?

          Suppose a large animal has 2.8 cm thick fur with a surface area of 1.6 m^2.
Substance
thermal conductivity k (j/s x m x Celsius)
Glass Wool
0.042
Wool
0.04
Glass
0.84
Human Body
0.2
Ceramic
0.84
Wood
0.08 - 0.16
Air
0.023
Fatty Tissue
0.2
Styrofoam
0.010
part a) What is the rate of heat conduction, in watts, through the fur of the animal? Assume that the animal's skin temperature is 32.0°C, that the air temperature is -5.00°C, and that fur has the same thermal conductivity as air.
part b) What food intake, in kilocalories, will the animal need in one day to replace this heat transfer?

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Added by Ronald L.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

06/21/2023

Step 1

We can use the formula: $Q = k \cdot A \cdot \frac{T_{hot} - T_{cold}}{d}$ where $Q$ is the rate of heat conduction (in watts), $k$ is the thermal conductivity (in J/s·m·°C), $A$ is the surface area (in m²), $T_{hot}$ is the hot temperature (in °C), $T_{cold}$ Show more…

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Suppose a large animal has 2.8 cm thick fur with a surface area of 1.6 m^2. Substance thermal conductivity k (j/s x m x Celsius) Glass Wool 0.042 Wool 0.04 Glass 0.84 Human Body 0.2 Ceramic 0.84 Wood 0.08 - 0.16 Air 0.023 Fatty Tissue 0.2 Styrofoam 0.010 part a) What is the rate of heat conduction, in watts, through the fur of the animal? Assume that the animal's skin temperature is 32.0°C, that the air temperature is -5.00°C, and that fur has the same thermal conductivity as air. part b) What food intake, in kilocalories, will the animal need in one day to replace this heat transfer?

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