Question

Suppose you stand with one foot on ceramic flooring and one on a wool carpet, making contact over a 81.2 cm2 area with each foot. Both the ceramic and the carpet are 3.25 cm thick and are 10.0°C on their bottoms. At what rate must each foot supply heat to keep the top of the ceramic and carpet at 33.0°C? The thermal conductivity of ceramic is 0.84 J/(s · m · °C) and that of wool is 0.04 J/(s · m · °C).

Suppose you stand with one foot on ceramic flooring and one on a wool carpet, making contact over a 81.2 cm2 area with each foot. Both the ceramic and the carpet are 3.25 cm thick and are 10.0°C on their bottoms. At what rate must each foot supply heat to keep the top of the ceramic and carpet at 33.0°C? The thermal conductivity of ceramic is 0.84 J/(s m. °C) and that of wool is 0.04 J/(s m. °C) ceramic tile W wool carpet W

Answer 1

Tvendata Te 10.0 The 32-0'c Aleaute 81.2 cnt Levamic32r Cm ceva mic Vale wod hr pet and vate 7 dar pet dcesamic d 2.20m 00 32rm 0.04 4/ac bcs 0.84 le -27101 A:) 2l-2 cm Paug lat auelage Power de dt KA LTh-Te) 0.04 x(81.2xi) (83-lo) 4.829 w 0.0321 Celamic 4.l2gw W od Crpet? to A (th-Te) 004 (a.2x0) (11-10) d 0-0225 0.23 W 0. 2218