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Home / Doubts and Solutions/NEET/Physics

What is rise in temperature of a collective drop when initially 1gm and 2 gm dropa travelling with velocity 10cm/s and 15cm/s 

Asked by anirbanbag81 25th November 2017, 9:16 AM
Answered by Expert
Answer:
The collective drop will have mass 3gm
below are the steps that will help you for the solution
begin mathsize 16px style s p e c i f i c space h e a t space o f space l i q u i d space o f space w h i c h space d r o p s space a r e space equals fraction numerator T o t a l space e n e r g y over denominator m a s s space x space T e m p e r a t u r e space r i s e end fraction T o t a l space e n e r g y space equals space m g h equals left parenthesis 0.001 plus 0.002 right parenthesis space x 9.8 space x space h equals space 0.003 x 9.8 space x space h s p e c i f i c space h e a t space o f space l i q u i d space o f space w h i c h space d r o p s space a r e space T e m p e r a t u r e space r i s e space equals fraction numerator 9.8 x h over denominator s p e c i f i c space h e a t space o f space l i q u i d space o f space w h i c h space d r o p s space a r e space end fraction f i n d space t h e space r e s u l tan t space v e l o c i t y space u sin g space f o r m u l a space square root of v subscript 1 squared plus v subscript 2 squared plus 2 v subscript 1 v subscript 2 cos theta end root end style
resultant velocity is required to find h
Answered by Expert 28th November 2017, 4:25 PM
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