The roof of an airconditioned home is 7 m long, 9 m wide, and 20 cm thick. It is made of a flat layer of concrete whose thermal conductivity is k = 0.8 W/m·K. The temperatures of the outer and the inner surfaces of the roof one afternoon are measured to be 34°C and 18°C, respectively, for a period of 4 hours. Determine the ff: (Round off your final answers to two (2) decimal places.)(a) the rate of heat through the roof in W = (b) the cost of the heat gain to the homeowner if the cost of electricity is ₱9.00/kWh = The roof of an airconditioned home is 7 m long, 9 m wide, and 20cm thick. It is made of a flat layer of concrete whose thermalconductivity is k = 0.8 W/m-K. The temperatures of the outer andthe inner surfaces of the roof one afternoon are measured to be34°C and 18°C, respectively, for a period of 4 hours. Determinethe ff: (Round off your final answers to two (2) decimal places.)(a) the rate of heat through the roof in =(b) the cost of the heat gain to the homeowner if the cost ofelectricity is P9.00/kWh =

(a) To find: The rate of heat through the roof in watt. Given: The length, width and thickness of…

Answered: The roof of an airconditioned home is 7…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The roof of an airconditioned home is 7 m long, 9 m wide, and 20 cm thick. It is made of a flat layer of concrete whose thermal conductivity is k = 0.8 W/m·K. The temperatures of the outer and the inner surfaces of the roof one afternoon are measured to be 34°C and 18°C, respectively, for a period of 4 hours. Determine the ff: (Round off your final answers to two (2) decimal places.)

(a) the rate of heat through the roof in W =

(b) the cost of the heat gain to the homeowner if the cost of electricity is ₱9.00/kWh =

The roof of an airconditioned home is 7 m long, 9 m wide, and 20
cm thick. It is made of a flat layer of concrete whose thermal
conductivity is k = 0.8 W/m-K. The temperatures of the outer and
the inner surfaces of the roof one afternoon are measured to be
34°C and 18°C, respectively, for a period of 4 hours. Determine
the ff: (Round off your final answers to two (2) decimal places.)
(a) the rate of heat through the roof in =
(b) the cost of the heat gain to the homeowner if the cost of
electricity is P9.00/kWh =

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