Students on a spring break picnic bring a cooler that contains 5.3 kg of ice at 0.0°C. The cooler has walls. that are 3.5 cm thick and are made of Styrofoam, which has a thermal conductivity of 0.030W/(m C). The surface area of the cooler is 2.2 m² and it rests in the shade where the air temperature is 22 °C. Find the rate at which heat flows into the cooler. Express your answer using two significant figures. 195] ΑΣΦ Q/t= Submit Previous Answers Request Answer OWIC X Incorrect; Try Again; 3 attempts remaining Part B How long does it take for the ice in the cooler to melt? Express your answer using two significant figures. VO ΑΣΦ → ? W hrs.

Students on a spring break picnic bring a cooler that contains 5.3 kg of ice at 0.0°C. The cooler has walls. that are 3.5 cm thick and are made of Styrofoam, which has a thermal conductivity of 0.030W/(m C). The surface area of the cooler is 2.2 m² and it rests in the shade where the air temperature is 22 °C. Find the rate at which heat flows into the cooler. Express your answer using two significant figures. 195] ΑΣΦ Q/t= Submit Previous Answers Request Answer OWIC X Incorrect; Try Again; 3 attempts remaining Part B How long does it take for the ice in the cooler to melt? Express your answer using two significant figures. VO ΑΣΦ → ? W hrs.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 119AP: For the human body, what is the rate of heat transfer by conduction through the body's tissue with...

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(a) Calculate the rate of heat conduction (in W) through house walls that are 11.5 cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The surface area of the walls is 150 m2 and their inside surface is at 20.0°C, while their outside surface is at 5.00°C. 1565.21 (b) How many 1 kW room heaters would be needed to balance the heat transfer due to conduction? (Round your answer to the next whole integer.) 2 1 kW room heaters
Students on a spring break picnic bring a cooler that contains5.1 kg of ice at 0.0 °C. The cooler has walls that are 3.8 cm thickand are made of Styrofoam, which has a thermal conductivity of0.030 W>1m # C°2. The surface area of the cooler is 1.5 m2, and itrests in the shade where the air temperature is 21 °C. (a) Find therate at which heat flows into the cooler. (b) How much time doesit take for the ice in the cooler to melt?
(a) Calculate the rate of heat conduction (in W) through house walls that are 11.5 cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The surface area of the walls is 150 m2 and their inside surface is at 20.0°C, while their outside surface is at 5.00°C. 1340000 X W (b) How many 1 kW room heaters would be needed to balance the heat transfer due to conduction? (Round your answer to the next whole integer.) 2 1 kW room heaters --..-- (a) Calculate the rate of heat conduction (in W) through house walls that are 11.5 cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The surface area of the walls is 150 m² and their inside surface is at 20.0°C, while their outside surface is at 5.00°C. 1565.21 X W (b) How many 1 kW room heaters would be needed to balance the heat transfer due to conduction? (Round your answer to the next whole integer.) 1 kW room heaters…