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Category > Physics Posted 23 May 2017 My Price 7.00

I am reviewing for a physics exam

Hello,

I am reviewing for a physics exam that I have soon and I don't understand the question below. When I tried answering it I wrote that the work was the same because if we use vectors for the diagram, AB+BC= AD+DC (the diagonal). However, that is not right. I looked at the answer and I don't understand why the work is the same. If I use the equation W= delta Q - delta U , as the change in the temperature and the change in the internal energy are the same (as specified in the answer), shouldn't the work be = 0? I don't understand why the area can be used to show that the work is greater for ABC. Could someone help me understand it?

Also, what is the first law?

Thank you very much !

 

 

Captura de pantalla 2017-05-13 a las 13.20.48.png

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Captura de pantalla 2017-05-13 a las 13.21.01.png

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SuperTutor
(15)
Status NEW Posted 23 May 2017 02:05 AM My Price 7.00

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file 1495505298-Solutions file.docx preview (56 words )
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