At a given instant, a closed system is loosing 0.21 kW of heat to the outside atmosphere. A battery inside the system keeps it warm by powering a 40 W internal heating lamp. A shaft transfers 0.21 kW of work into the system at the same time. Part A Determine the rate of external work transfer, the rate of heat transfer, and dE/dt of the system. Express your answers, separated by commas, to two significant figures, if necessary. VOl AEo It vec Wext kW, kW, kW

At a given instant, a closed system is loosing 0.21 kW of heat to the outside atmosphere. A battery inside the system keeps it warm by powering a 40 W internal heating lamp. A shaft transfers 0.21 kW of work into the system at the same time. Part A Determine the rate of external work transfer, the rate of heat transfer, and dE/dt of the system. Express your answers, separated by commas, to two significant figures, if necessary. VOl AEo It vec Wext kW, kW, kW

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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Question

At a given instant, a closed system is loosing 0.21 kW of heat to the outside atmosphere. A battery inside the system keeps it warm by powering a 40 W internal heating lamp. A shaft transfers 0.21 kW of work into the
system at the same time.
Part A
Determine the rate of external work transfer, the rate of heat transfer, and dE/dt of the system.
Express your answers, separated by commas, to two significant figures, if necessary.
Vo AEO It vec
?
Wert = Q
kW, kW, kW

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