Ek refrigerator 2000 calorie usma baraf ki Trey se leta hai. Karya nishpadan gunank 4hai. Motor dwara calorie Mein total work hai
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Answer:
2000/3 cal
Explanation:
∆=q1+W/W
*q1= calories li gyi
w=work
∆=nishpadan gunank
=4=2000+w/w
=w=2000/3 cal
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