a cup contains 100ml of water at 10°c

Physics
Tutor: None Selected Time limit: 1 Day

if 100 ml of 50°c water is added what temperature of the mixture be?

Oct 5th, 2014

Let the final temperature be t degrees

100(t-10)+10(50-t) =200 t

(t-10)+(50-t)=2t

2t =40

t =20 

Answer: 20 degrees

Oct 6th, 2014

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